Are P.R.I.M.A.L. Keepers and RESIDUE 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 P.R.I.M.A.L. Keepers and RESIDUE have co-op?

Yes — both list a co-op category on Steam. Specifics differ: P.R.I.M.A.L. Keepers ships Online Co-op, Co-op; RESIDUE ships Online Co-op, Co-op.

P.R.I.M.A.L. Keepers vs RESIDUE

P.R.I.M.A.L. Keepers and RESIDUE 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 P.R.I.M.A.L. Keepers

Choose P.R.I.M.A.L. Keepers if it matches what drew you to this matchup.

Choose RESIDUE

Choose RESIDUE if you want an Indie and Early Access experience.

Both P.R.I.M.A.L. Keepers and RESIDUE sit in Action on Steam and both list Multi-player, Online PvP, and Online Co-op, 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.

P.R.I.M.A.L. Keepers vs RESIDUE — Steam metadata comparison
	P.R.I.M.A.L. Keepers	RESIDUE
Released	—	—
Genres	Action	Action, Indie, Early Access
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	RaPi_Games	Lowlife Interactive

Side by side

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