IMHO.

后室重生Backrooms Rebirth vs The Undergrounders

后室重生Backrooms Rebirth and The Undergrounders both land in Action, Indie, Adventure on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie, Adventure on Steam. 后室重生Backrooms Rebirth (2024) is 1 year older than The Undergrounders (2025). The Undergrounders is currently ~60% cheaper on Steam than 后室重生Backrooms Rebirth (1.99 USD vs. 4.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose 后室重生Backrooms Rebirth

Choose 后室重生Backrooms Rebirth if you want a Simulation and Massively Multiplayer game with Multi-player, Online Co-op, and Co-op. On Steam, it has co-op, so you can bring a friend. 后室重生Backrooms Rebirth launched in 2024.

Choose The Undergrounders

Choose The Undergrounders if you want a Casual experience. On Steam, it's currently about 60% cheaper on the Steam Store. The Undergrounders launched in 2025.

Both 后室重生Backrooms Rebirth and The Undergrounders sit in Action, Indie, and Adventure on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

Side-by-side comparison

后室重生Backrooms Rebirth vs The Undergrounders — Steam metadata comparison
后室重生Backrooms Rebirth — Steam game cover后室重生Backrooms RebirthThe Undergrounders — Steam game coverThe Undergrounders
Released20242025
GenresAction, Indie, Adventure, Simulation, Massively MultiplayerAction, Indie, Adventure, Casual
PlatformsWindowsWindows
Steam DeckDeck PlayableUnrated
Price4.99 USD1.99 USD
Steam reviews7 reviews2 reviews
MultiplayerMulti-player, Online Co-op, Co-opSingle-player only
DevelopersSJGZS, 焦凡航Mustefa219

Side by side

后室重生Backrooms Rebirth vs The Undergrounders — FAQ

Should I play 后室重生Backrooms Rebirth or The Undergrounders first?
If you want chronology, 后室重生Backrooms Rebirth (2024) came out before The Undergrounders (2025). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
Are 后室重生Backrooms Rebirth and The Undergrounders similar?
They overlap on Action, Indie, Adventure on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
Does The Undergrounders have multiplayer like 后室重生Backrooms Rebirth?
No. 后室重生Backrooms Rebirth supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while The Undergrounders is listed as single-player only.
Does 后室重生Backrooms Rebirth run on Steam Deck?
Yes — 后室重生Backrooms Rebirth is rated Deck Playable by Valve. The Undergrounders doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.