Choose Mondrian 99
Choose Mondrian 99 if it matches what drew you to this matchup. Mondrian 99 launched in 2023.
Mondrian 99 vs Heartmend: 3D Jigsaw Puzzle
Mondrian 99 and Heartmend: 3D Jigsaw Puzzle 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. Mondrian 99 (2023) is 3 years older than Heartmend: 3D Jigsaw Puzzle (2026). 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 Heartmend: 3D Jigsaw Puzzle
Choose Heartmend: 3D Jigsaw Puzzle if it's the newer release (2026) and ships with the modern feature baseline. Heartmend: 3D Jigsaw Puzzle launched in 2026.
Both Mondrian 99 and Heartmend: 3D Jigsaw Puzzle 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
 Mondrian 99 |  Heartmend: 3D Jigsaw Puzzle | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Indie, Casual | Indie, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Happy | AWeekGame |
Side by side
- Both share Indie, Casual on Steam.
- Mondrian 99 (2023) is 3 years older than Heartmend: 3D Jigsaw Puzzle (2026).
Mondrian 99 vs Heartmend: 3D Jigsaw Puzzle — FAQ
- Should I play Mondrian 99 or Heartmend: 3D Jigsaw Puzzle first?
- If you want chronology, Mondrian 99 (2023) came out before Heartmend: 3D Jigsaw Puzzle (2026). 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 Mondrian 99 and Heartmend: 3D Jigsaw Puzzle 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.