Backrooms: Lost Dimension is a single-player horror adventure. Explore unsettling levels, solve unique puzzles, and survive terrifying encounters while following an original story. Free content updates with new levels will expand the experience and keep the nightmare evolving.

Backrooms: Lost Dimension is a single-player horror adventure. Explore unsettling levels, solve unique puzzles, and survive terrifying encounters while following an original story.Free content updates with new levels will expand the experience and keep the nightmare evolving.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/22f388d1ecc425b80a17b34924360c12.poster.avif?t=1770236645" width=520 height=292 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/22f388d1ecc425b80a17b34924360c12.webm?t=1770236645" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/22f388d1ecc425b80a17b34924360c12.mp4?t=1770236645" type="video/mp4"></video><img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/ac46f70a9a1ef4bbe23f966b1312c634.avif?t=1770236645" width=1530 height=111 />Immersive Experience: Explore a dark and captivating world, where every room hides secrets and every corner can surprise you. Get ready for an experience that will keep you engaged from start to finish.10 levels per chapter (over 300 levels in total): Each chapter features 10 unique levels, with increasing challenges and varied environments. The full game will include over 300 levels designed to test your skills and ingenuity.Solve puzzles: Challenge your mind with creative and intricate puzzles that unlock new areas, reveal secrets, and guide your adventure.”Experience story fragments: “Discover the story piece by piece through short narrative sequences, allowing the plot to slowly unfold as you explore the world.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/4e88d8f1c666f7255664bd974a79fa0e.poster.avif?t=1770236645" width=520 height=292 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/4e88d8f1c666f7255664bd974a79fa0e.webm?t=1770236645" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/4e88d8f1c666f7255664bd974a79fa0e.mp4?t=1770236645" type="video/mp4"></video><img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/704da338ff58d81a0212dac45de553c1.avif?t=1770236645" width=1530 height=111 />We need your support to make The Lost Dimension the ultimate Backrooms experience! Adding the game to your wishlist helps us reach more players and shows the community that you want to see this world fully realized.By wishlist-ing, you’ll be the first to get updates, news, and sneak peeks as we continue developing new levels, puzzles, and multiplayer features. Join us on this journey and help shape the game!<video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/b6d5e206d20e779d36d3b847b1d568fa.poster.avif?t=1770236645" width=520 height=293 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4036160/extras/b6d5e206d20e779d36d3b847b1d568fa.webm?t=1770236645" type="video/webm; codecs=vp9"></video>

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Backrooms Lost Dimension Achievements