Choose Outside The Grid
Choose Outside The Grid if you want an Indie and Simulation experience. Outside The Grid launched in 2020.
Outside The Grid vs Grey Lines
Outside The Grid and Grey Lines 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 Grey Lines
Choose Grey Lines if you want an Adventure game with Shared/Split Screen, Shared/Split Screen PvP, and Shared/Split Screen Co-op.
Both Outside The Grid and Grey Lines 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.
Side-by-side comparison
 Outside The Grid |  Grey Lines | |
|---|---|---|
| Released | 2020 | — |
| Genres | Action, Indie, Simulation | Action, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | Price unknown |
| Steam reviews | 80.2% positive (91 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, LAN Co-op | Multi-player, Online Co-op, Shared/Split Screen Co-op |
| Developers | GidAzGames | Creative Dn8 |
Side by side
- Both are Action games on Steam.
- Both support cooperative play.
Outside The Grid vs Grey Lines — FAQ
- Are Outside The Grid and Grey Lines 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 Outside The Grid and Grey Lines have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Outside The Grid ships Online Co-op, LAN Co-op; Grey Lines ships Online Co-op, Shared/Split Screen Co-op.