Choose O.C.D. - On Completeness & Dissonance
Choose O.C.D. - On Completeness & Dissonance if it's currently about 50% cheaper on the Steam Store. O.C.D. - On Completeness & Dissonance launched in 2018.
O.C.D. - On Completeness & Dissonance vs One Line
O.C.D. - On Completeness & Dissonance and One Line 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. O.C.D. - On Completeness & Dissonance (2018) is 3 years older than One Line (2021). O.C.D. - On Completeness & Dissonance is currently ~50% cheaper on Steam than One Line (0.99 USD vs. 1.99 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 One Line
Choose One Line if you want the Custom Volume Controls, Playable without Timed Input, and Mouse Only Option side of the pairing. On Steam, it's the newer release (2021) and ships with the modern feature baseline. One Line launched in 2021.
Both O.C.D. - On Completeness & Dissonance and One Line 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
 O.C.D. - On Completeness & Dissonance |  One Line | |
|---|---|---|
| Released | 2018 | 2021 |
| Genres | Indie, Casual | Indie, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | 1.99 USD |
| Steam reviews | — | 94.1% positive (34 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Flat Voxel | Climbing Goat Games |
Side by side
- Both share Indie, Casual on Steam.
- O.C.D. - On Completeness & Dissonance (2018) is 3 years older than One Line (2021).
- O.C.D. - On Completeness & Dissonance is currently ~50% cheaper on Steam than One Line (0.99 USD vs. 1.99 USD).
O.C.D. - On Completeness & Dissonance vs One Line — FAQ
- Should I play O.C.D. - On Completeness & Dissonance or One Line first?
- If you want chronology, O.C.D. - On Completeness & Dissonance (2018) came out before One Line (2021). 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 O.C.D. - On Completeness & Dissonance and One Line 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.