The Hidden Bunker is a special Spaceport map condition that changes how the raid works. When it\u2019s active, Spaceport becomes harder, extraction options are limited, and the entire lobby shares progress toward opening the bunker.<\/p>\n\n\n\n
Hidden Bunker is designed to force interaction. You can cooperate, ignore everyone else, or get betrayed. The game doesn\u2019t care.<\/p>\n\n\n\n
Hidden Bunker Map Modifier Effects<\/strong><\/h2>\n\n\n\nWhen the Hidden Bunker map modifier is active in Arc Raiders, Spaceport gets noticeably more punishing:<\/p>\n\n\n\n
\n- Fewer Return Points available<\/li>\n\n\n\n
- No Raider Hatches<\/li>\n\n\n\n
- Spaceport difficulty increases from 3\/5 to 5\/5<\/strong><\/li>\n\n\n\n
- 2x Trials multiplier<\/strong><\/li>\n\n\n\n
- Maximum raid duration of 40 minutes<\/strong>
<\/strong><\/li>\n<\/ul>\n\n\n\nIf you\u2019re running trials or grinding progression, this is why players chase the Hidden Bunker event.<\/p>\n\n\n\n
How to Unlock the Hidden Bunker in Arc Raiders<\/strong><\/h2>\n\n\n\nTo unlock the Hidden Bunker, four rooftop antennas must be activated on Spaceport. These antennas spawn on rooftops near the center of the map, but their locations change every raid.<\/p>\n\n\n\n
Any antenna that hasn\u2019t been activated shows up on the map. Zooming out makes route planning much easier.<\/p>\n\n\n\n
You can activate all four antennas solo, but most of the time different players handle different ones. Unlock progress is shared across the lobby, so once an antenna is done, it\u2019s done for everyone.<\/p>\n\n\n\n
How Antennas Work<\/strong><\/h3>\n\n\n\nEach antenna requires two interactions.<\/p>\n\n\n\n
The first interaction triggers an alarm and spawns ARC enemies, usually Wasps and Hornets. Clear them out, interact again, and the antenna is complete. A progress message is sent to the entire lobby.<\/p>\n\n\n\n
Once all four antennas are activated, the hidden bunker opens.<\/p>\n\n\n\n
Hidden Bunker Location on Spaceport<\/strong><\/h2>\n\n\n\n![\"\"](\"https:\/\/www.itemku.com\/en\/blog\/wp-content\/uploads\/2026\/01\/image-28.png\")
<\/figure>\n\n\n\nThe Hidden Bunker is located west of the Departure Building on Spaceport. It has multiple entrances, all in the same area, so finding it isn\u2019t difficult once it\u2019s revealed.<\/p>\n\n\n\n
What makes it dangerous is the defense. The bunker area is usually guarded by two Bastions and one Bombardier. If you rush in without clearing them or coordinating, you\u2019ll probably die there.<\/p>\n\n\n\n
How to Download Data in the Hidden Bunker<\/strong><\/h2>\n\n\n\nInside the Hidden Bunker are eight data terminals. These terminals are tied directly to the \u201cDownload Data during Hidden Bunker\u201d<\/strong> trial.<\/p>\n\n\n\nInteracting with a terminal starts a download. You need to stay close until it finishes. Leaving the area cancels the download and locks the terminal for a short time.<\/p>\n\n\n\n
Once the download completes, interact again to retrieve the data. Each terminal can only be looted once per raid.<\/p>\n\n\n\n
You don\u2019t have to start every download yourself. If another player starts one, you can still retrieve the data when it finishes.<\/p>\n\n\n\n
Is the Hidden Bunker Worth It?<\/strong><\/h2>\n\n\n\n![\"\"](\"https:\/\/www.itemku.com\/en\/blog\/wp-content\/uploads\/2026\/01\/image-30.png\")
<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
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<\/strong><\/li>\n<\/ul>\n\n\n\n
If you\u2019re running trials or grinding progression, this is why players chase the Hidden Bunker event.<\/p>\n\n\n\n
How to Unlock the Hidden Bunker in Arc Raiders<\/strong><\/h2>\n\n\n\nTo unlock the Hidden Bunker, four rooftop antennas must be activated on Spaceport. These antennas spawn on rooftops near the center of the map, but their locations change every raid.<\/p>\n\n\n\n
Any antenna that hasn\u2019t been activated shows up on the map. Zooming out makes route planning much easier.<\/p>\n\n\n\n
You can activate all four antennas solo, but most of the time different players handle different ones. Unlock progress is shared across the lobby, so once an antenna is done, it\u2019s done for everyone.<\/p>\n\n\n\n
How Antennas Work<\/strong><\/h3>\n\n\n\nEach antenna requires two interactions.<\/p>\n\n\n\n
The first interaction triggers an alarm and spawns ARC enemies, usually Wasps and Hornets. Clear them out, interact again, and the antenna is complete. A progress message is sent to the entire lobby.<\/p>\n\n\n\n
Once all four antennas are activated, the hidden bunker opens.<\/p>\n\n\n\n
Hidden Bunker Location on Spaceport<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nThe Hidden Bunker is located west of the Departure Building on Spaceport. It has multiple entrances, all in the same area, so finding it isn\u2019t difficult once it\u2019s revealed.<\/p>\n\n\n\n
What makes it dangerous is the defense. The bunker area is usually guarded by two Bastions and one Bombardier. If you rush in without clearing them or coordinating, you\u2019ll probably die there.<\/p>\n\n\n\n
How to Download Data in the Hidden Bunker<\/strong><\/h2>\n\n\n\nInside the Hidden Bunker are eight data terminals. These terminals are tied directly to the \u201cDownload Data during Hidden Bunker\u201d<\/strong> trial.<\/p>\n\n\n\nInteracting with a terminal starts a download. You need to stay close until it finishes. Leaving the area cancels the download and locks the terminal for a short time.<\/p>\n\n\n\n
Once the download completes, interact again to retrieve the data. Each terminal can only be looted once per raid.<\/p>\n\n\n\n
You don\u2019t have to start every download yourself. If another player starts one, you can still retrieve the data when it finishes.<\/p>\n\n\n\n
Is the Hidden Bunker Worth It?<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
How to Find & Unlock the Hidden Bunker in Arc Raiders<\/title>\n<meta name=\"description\" content=\"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.itemku.com\/en\/blog\/steam\/hidden-bunker-arc-raiders-guide-how-to-find-and-unlock-it\/2549\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Find & Unlock the Hidden Bunker in Arc Raiders\" \/>\n<meta property=\"og:description\" content=\"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.\" \/>\n<meta property=\"og:url\" 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Each antenna requires two interactions.<\/p>\n\n\n\n
The first interaction triggers an alarm and spawns ARC enemies, usually Wasps and Hornets. Clear them out, interact again, and the antenna is complete. A progress message is sent to the entire lobby.<\/p>\n\n\n\n
Once all four antennas are activated, the hidden bunker opens.<\/p>\n\n\n\n
Hidden Bunker Location on Spaceport<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nThe Hidden Bunker is located west of the Departure Building on Spaceport. It has multiple entrances, all in the same area, so finding it isn\u2019t difficult once it\u2019s revealed.<\/p>\n\n\n\n
What makes it dangerous is the defense. The bunker area is usually guarded by two Bastions and one Bombardier. If you rush in without clearing them or coordinating, you\u2019ll probably die there.<\/p>\n\n\n\n
How to Download Data in the Hidden Bunker<\/strong><\/h2>\n\n\n\nInside the Hidden Bunker are eight data terminals. These terminals are tied directly to the \u201cDownload Data during Hidden Bunker\u201d<\/strong> trial.<\/p>\n\n\n\nInteracting with a terminal starts a download. You need to stay close until it finishes. Leaving the area cancels the download and locks the terminal for a short time.<\/p>\n\n\n\n
Once the download completes, interact again to retrieve the data. Each terminal can only be looted once per raid.<\/p>\n\n\n\n
You don\u2019t have to start every download yourself. If another player starts one, you can still retrieve the data when it finishes.<\/p>\n\n\n\n
Is the Hidden Bunker Worth It?<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
How to Find & Unlock the Hidden Bunker in Arc Raiders<\/title>\n<meta name=\"description\" content=\"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.itemku.com\/en\/blog\/steam\/hidden-bunker-arc-raiders-guide-how-to-find-and-unlock-it\/2549\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Find & Unlock the Hidden Bunker in Arc Raiders\" \/>\n<meta property=\"og:description\" content=\"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.\" \/>\n<meta property=\"og:url\" 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<\/figure>\n\n\n\nThe Hidden Bunker is located west of the Departure Building on Spaceport. It has multiple entrances, all in the same area, so finding it isn\u2019t difficult once it\u2019s revealed.<\/p>\n\n\n\n
What makes it dangerous is the defense. The bunker area is usually guarded by two Bastions and one Bombardier. If you rush in without clearing them or coordinating, you\u2019ll probably die there.<\/p>\n\n\n\n
How to Download Data in the Hidden Bunker<\/strong><\/h2>\n\n\n\nInside the Hidden Bunker are eight data terminals. These terminals are tied directly to the \u201cDownload Data during Hidden Bunker\u201d<\/strong> trial.<\/p>\n\n\n\nInteracting with a terminal starts a download. You need to stay close until it finishes. Leaving the area cancels the download and locks the terminal for a short time.<\/p>\n\n\n\n
Once the download completes, interact again to retrieve the data. Each terminal can only be looted once per raid.<\/p>\n\n\n\n
You don\u2019t have to start every download yourself. If another player starts one, you can still retrieve the data when it finishes.<\/p>\n\n\n\n
Is the Hidden Bunker Worth It?<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
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Interacting with a terminal starts a download. You need to stay close until it finishes. Leaving the area cancels the download and locks the terminal for a short time.<\/p>\n\n\n\n
Once the download completes, interact again to retrieve the data. Each terminal can only be looted once per raid.<\/p>\n\n\n\n
You don\u2019t have to start every download yourself. If another player starts one, you can still retrieve the data when it finishes.<\/p>\n\n\n\n
Is the Hidden Bunker Worth It?<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
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<\/figure>\n\n\n\nIf you care about Trials progress, the answer is yes. The 2x multiplier alone makes the Hidden Bunker one of the best Spaceport events to run.<\/p>\n\n\n\n
Just don\u2019t overstay. With fewer extractions and heavier enemy patrols, pushing your luck inside the bunker is how good runs end badly. Get your data, read the situation, and leave.<\/p>\n\n\n\n
Hidden Bunker Patch Update<\/strong><\/h2>\n\n\n\nIn patch 1.7.2<\/strong>, the Hidden Bunker map condition in Arc Raiders was re-enabled.<\/p>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n
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If you\u2019re searching for how to find the Hidden Bunker in Arc Raiders, this is the short and clear answer: it\u2019s a Spaceport map modifier that unlocks a sealed bunker filled with enemies, data terminals, and high-value rewards. You don\u2019t stumble into it by accident. You unlock it by activating rooftop antennas and surviving the<\/p>\n","protected":false},"author":15,"featured_media":2551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"How to Find & Unlock the Hidden Bunker in Arc Raiders","_yoast_wpseo_metadesc":"Complete guide to the Hidden Bunker in Arc Raiders: how to unlock it, where it spawns on Spaceport, map modifier effects, and 2x Trials rewards.","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-2549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-steam"},"yoast_head":"\n