Are Primal Planet and Ghost Trap: Underworld 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 Ghost Trap: Underworld have multiplayer like Primal Planet?

No. Primal Planet supports multiplayer on Steam (Multi-player, Shared/Split Screen Co-op, Co-op), while Ghost Trap: Underworld is listed as single-player only.

Does Primal Planet run on Steam Deck?

Yes — Primal Planet is rated Deck Verified by Valve. Ghost Trap: Underworld doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.

Primal Planet vs Ghost Trap: Underworld

Primal Planet and Ghost Trap: Underworld 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. Primal Planet has co-op; Ghost Trap: Underworld does not. Primal Planet is Deck Verified on Steam Deck; Ghost Trap: Underworld has no Deck rating yet. 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 Primal Planet

Choose Primal Planet if you want the Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Primal Planet launched in 2025.

Choose Ghost Trap: Underworld

Choose Ghost Trap: Underworld if you want the Camera Comfort side of the pairing. On Steam, it's a focused single-player run rather than a multiplayer commitment.

Both Primal Planet and Ghost Trap: Underworld sit in Action, Indie, and Adventure on Steam and both list Custom Volume Controls, Stereo Sound, and Keyboard Only Option, 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.

Primal Planet vs Ghost Trap: Underworld — Steam metadata comparison
	Primal Planet	Ghost Trap: Underworld
Released	2025	—
Genres	Action, Indie, Adventure	Action, Indie, Adventure
Platforms	Windows	Windows
Steam Deck	Deck Verified	Unrated
Price	19.99 USD	Price unknown
Steam reviews	90% positive (299 reviews)	—
Multiplayer	Multi-player, Shared/Split Screen Co-op, Co-op	Single-player only
Developers	Seethingswarm	WilhelmGStudios

Side by side

Both share Action, Indie, Adventure on Steam.
Primal Planet has co-op; Ghost Trap: Underworld does not.
Primal Planet is Deck Verified on Steam Deck; Ghost Trap: Underworld has no Deck rating yet.