Choose Tidalis
Choose Tidalis if you want the Multi-player, Shared/Split Screen, and Online Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend. Tidalis launched in 2010.
Tidalis vs Critical Mass
Tidalis and Critical Mass both land in Indie, Casual 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 Indie, Casual on Steam. Tidalis (2010) is 1 year older than Critical Mass (2011). Tidalis scores higher on Steam reviews (68.8% positive) than Critical Mass (65.2% positive). 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 Critical Mass
Choose Critical Mass if it's currently about 60% cheaper on the Steam Store. Critical Mass launched in 2011.
Both Tidalis and Critical Mass sit in Indie and Casual on Steam, 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
 Tidalis |  Critical Mass | |
|---|---|---|
| Released | 2010 | 2011 |
| Genres | Indie, Casual | Indie, Casual |
| Platforms | Windows, macOS, Linux | Windows, macOS |
| Steam Deck | Unrated | Deck Playable |
| Price | 4.99 USD | 1.99 USD |
| Steam reviews | 68.8% positive (80 reviews) | 65.2% positive (181 reviews) |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Online Co-op | Single-player only |
| Developers | Arcen Games | Manic Game Studios |
Side by side
- Both share Indie, Casual on Steam.
- Tidalis (2010) is 1 year older than Critical Mass (2011).
- Tidalis scores higher on Steam reviews (68.8% positive) than Critical Mass (65.2% positive).
- Critical Mass is currently ~60% cheaper on Steam than Tidalis (1.99 USD vs. 4.99 USD).
- Tidalis has co-op; Critical Mass does not.
- Critical Mass is Deck Playable on Steam Deck; Tidalis has no Deck rating yet.
Tidalis vs Critical Mass — FAQ
- Should I play Tidalis or Critical Mass first?
- If you want chronology, Tidalis (2010) came out before Critical Mass (2011). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Tidalis and Critical Mass similar?
- They overlap on Indie, Casual 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 Critical Mass have multiplayer like Tidalis?
- No. Tidalis supports multiplayer on Steam (Multi-player, Cross-Platform Multiplayer, Online Co-op), while Critical Mass is listed as single-player only.