Choose Chaos Theory
Choose Chaos Theory if it's currently about 40% cheaper on the Steam Store. Chaos Theory launched in 2008.
Chaos Theory vs Tidalis
Chaos Theory and Tidalis 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. Chaos Theory (2008) is 2 years older than Tidalis (2010). Chaos Theory is currently ~40% cheaper on Steam than Tidalis (2.99 USD vs. 4.99 USD). 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 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.
Both Chaos Theory and Tidalis 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
 Chaos Theory |  Tidalis | |
|---|---|---|
| Released | 2008 | 2010 |
| Genres | Indie, Casual | Indie, Casual |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 2.99 USD | 4.99 USD |
| Steam reviews | 9 reviews | 68.8% positive (80 reviews) |
| Multiplayer | Single-player only | Multi-player, Cross-Platform Multiplayer, Online Co-op |
| Developers | blurredVision | Arcen Games |
Side by side
- Both share Indie, Casual on Steam.
- Chaos Theory (2008) is 2 years older than Tidalis (2010).
- Chaos Theory is currently ~40% cheaper on Steam than Tidalis (2.99 USD vs. 4.99 USD).
- Tidalis has co-op; Chaos Theory does not.
Chaos Theory vs Tidalis — FAQ
- Should I play Chaos Theory or Tidalis first?
- If you want chronology, Chaos Theory (2008) came out before Tidalis (2010). 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 Chaos Theory and Tidalis 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 Chaos Theory have multiplayer like Tidalis?
- No. Tidalis supports multiplayer on Steam (Multi-player, Cross-Platform Multiplayer, Online Co-op), while Chaos Theory is listed as single-player only.