Choose Trigonometry
Choose Trigonometry if it matches what drew you to this matchup. Trigonometry launched in 2017.
Trigonometry vs Outline
Trigonometry and Outline both land in Action, 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 Action, Indie, Casual on Steam. Trigonometry (2017) is 1 year older than Outline (2018). Outline is currently ~0% cheaper on Steam than Trigonometry (0.99 USD vs. 0.99 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 Outline
Choose Outline if it matches what drew you to this matchup. Outline launched in 2018.
Both Trigonometry and Outline sit in Action, Indie, and Casual on Steam and both list Steam Leaderboards, 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
 Trigonometry |  Outline | |
|---|---|---|
| Released | 2017 | 2018 |
| Genres | Action, Indie, Casual | Action, Indie, Casual |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | 0.99 USD |
| Steam reviews | 70% positive (10 reviews) | 4 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | XiNFiNiTY Games | XiNFiNiTY Games |
Side by side
- Both share Action, Indie, Casual on Steam.
- Trigonometry (2017) is 1 year older than Outline (2018).
- Outline is currently ~0% cheaper on Steam than Trigonometry (0.99 USD vs. 0.99 USD).
Trigonometry vs Outline — FAQ
- Should I play Trigonometry or Outline first?
- If you want chronology, Trigonometry (2017) came out before Outline (2018). 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 Trigonometry and Outline similar?
- They overlap on Action, 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.