Choose Super Marble Brothers
Choose Super Marble Brothers if you want an Action, Adventure, and Casual experience. Super Marble Brothers launched in 2020.
Super Marble Brothers vs Relay Protocol
Super Marble Brothers and Relay Protocol both land in Indie 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 Indie 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 Relay Protocol
Choose Relay Protocol if you want an Early Access experience.
Both Super Marble Brothers and Relay Protocol sit in Indie on Steam and both list Multi-player, Online Co-op, and 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
 Super Marble Brothers |  Relay Protocol | |
|---|---|---|
| Released | 2020 | — |
| Genres | Action, Indie, Adventure, Casual, Racing | Indie, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 3.99 USD | Price unknown |
| Steam reviews | 3 reviews | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Vutune | Gustavo Rios |
Side by side
- Both are Indie games on Steam.
- Both support cooperative play.
Super Marble Brothers vs Relay Protocol — FAQ
- Are Super Marble Brothers and Relay Protocol similar?
- They overlap on Indie 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 Super Marble Brothers and Relay Protocol have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Super Marble Brothers ships Online Co-op, Co-op; Relay Protocol ships Online Co-op, Co-op.