▶ Trailer
ActionCasual3DAdventureSingleplayerHistoricalController
Once Upon A KATAMARI Steam store
Game description
Once upon a time a katamari rolled through both past and present. In this story across time, the adage endures: Let The Good Times Roll! Now onward through new worlds to roll up thy heart's desires and to restore the stars!
Basic info
| Developer | RENGAME |
|---|---|
| Publisher | Bandai Namco Entertainment Inc. |
| Platforms | Windows |
| Steam Deck | Verified✓ |
| Release date | Oct 23, 2025 |
| Price |
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Minimum specs
| OS | Windows 11 |
|---|---|
| Processor | Intel Core i3-8100 /AMD Ryzen 3 3100 |
| Memory | 6 GB |
| Graphics | Nvidia GeForce GTX 550 Ti [1 GB] / AMD Radeon HD 7770 [2 GB] |
| Storage | 6 GB |
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Review Analysis Score
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Steam review activity
since launch, by week · major update DLC
Oct 23, 2025Oct 29, 2026
per day · 18 reviews, peak 3/day
Oct 6Nov 4
per week · 51 reviews, peak 10/week
Aug 6, 2026Oct 29, 2026
per week · 113 reviews, peak 10/week
May 7, 2026Oct 29, 2026
per week · 769 reviews, peak 183/week
Nov 6, 2025Oct 29, 2026
Steam only gives daily counts for the last 30 days; longer ranges are by week. Months with fewer than 10 reviews are left out of % positive. "Show updates" marks major updates and DLC the developer posted on Steam (since about 2020) — hover a column to see % positive the week before and after.