Are Room Invaderz and Plague Keepers similar?

They overlap on Action 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.

Do both Room Invaderz and Plague Keepers have co-op?

Yes — both list a co-op category on Steam. Specifics differ: Room Invaderz ships Online Co-op, Co-op; Plague Keepers ships Online Co-op, Co-op.

Room Invaderz vs Plague Keepers

Room Invaderz and Plague Keepers both land in Action 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 are Action games on Steam. Both support cooperative play. 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 Room Invaderz

Choose Room Invaderz if you want an Indie experience.

Choose Plague Keepers

Choose Plague Keepers if you want an Adventure game with Steam Leaderboards, Steam Input API Support, and Adjustable Text Size.

Both Room Invaderz and Plague Keepers sit in Action on Steam and both list Multi-player, Online Co-op, and DualShock Controller Support, 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.

Room Invaderz vs Plague Keepers — Steam metadata comparison
	Room Invaderz	Plague Keepers
Released	—	—
Genres	Action, Indie	Action, Adventure
Platforms	Windows	Windows
Steam Deck	Unrated	Unrated
Price	Price unknown	Price unknown
Steam reviews	—	—
Multiplayer	Multi-player, Online Co-op, Co-op	Multi-player, Online Co-op, Co-op
Developers	Matthew Ryan Taylor	X1 Games

Side by side

Both are Action games on Steam.
Both support cooperative play.