Choose Zen of Sudoku
Choose Zen of Sudoku if it carries the stronger Steam consensus at 88.3% positive across 273 reviews.
Zen of Sudoku vs Ultimate Sudoku Collection
Zen of Sudoku and Ultimate Sudoku Collection 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. Zen of Sudoku (2006) is 12 years older than Ultimate Sudoku Collection (2018). Zen of Sudoku scores higher on Steam reviews (88.3% positive) than Ultimate Sudoku Collection (75.2% 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 Ultimate Sudoku Collection
Choose Ultimate Sudoku Collection if you want a Free To Play experience. On Steam, it's the newer release (2018) and ships with the modern feature baseline. Ultimate Sudoku Collection launched in 2018.
Both Zen of Sudoku and Ultimate Sudoku Collection 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
 Zen of Sudoku |  Ultimate Sudoku Collection | |
|---|---|---|
| Released | 2006 | 2018 |
| Genres | Indie, Casual | Indie, Free To Play, Casual |
| Platforms | Windows | Windows, macOS |
| Steam Deck | Deck Playable | Deck Verified |
| Price | Free to play | Free to play |
| Steam reviews | 88.3% positive (273 reviews) | 75.2% positive (113 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Unknown Worlds Entertainment | Stanley Lam |
Side by side
- Both share Indie, Casual on Steam.
- Zen of Sudoku (2006) is 12 years older than Ultimate Sudoku Collection (2018).
- Zen of Sudoku scores higher on Steam reviews (88.3% positive) than Ultimate Sudoku Collection (75.2% positive).
- Both are free to play.
- Steam Deck: Zen of Sudoku is Deck Playable, Ultimate Sudoku Collection is Deck Verified.
Zen of Sudoku vs Ultimate Sudoku Collection — FAQ
- Which is better, Zen of Sudoku or Ultimate Sudoku Collection?
- On Steam reviews Zen of Sudoku scores higher (88.3% positive) than Ultimate Sudoku Collection (75.2% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Zen of Sudoku is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Zen of Sudoku or Ultimate Sudoku Collection first?
- If you want chronology, Zen of Sudoku (2006) came out before Ultimate Sudoku Collection (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 Zen of Sudoku and Ultimate Sudoku Collection 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.