Choose Quiet Thoughts
Choose Quiet Thoughts if it's free to play, so the barrier to trying it is zero. Quiet Thoughts launched in 2021.
Quiet Thoughts vs Keo and the Cosmic Crystals
Quiet Thoughts and Keo and the Cosmic Crystals both land in Indie 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 are Indie games on Steam. Quiet Thoughts (2021) is 2 years older than Keo and the Cosmic Crystals (2023). Quiet Thoughts is free; Keo and the Cosmic Crystals is paid (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 Keo and the Cosmic Crystals
Choose Keo and the Cosmic Crystals if it matches what drew you to this matchup. Keo and the Cosmic Crystals launched in 2023.
Both Quiet Thoughts and Keo and the Cosmic Crystals sit in Indie 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
 Quiet Thoughts |  Keo and the Cosmic Crystals | |
|---|---|---|
| Released | 2021 | 2023 |
| Genres | Indie | Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Free to play | 1.99 USD |
| Steam reviews | 77.8% positive (18 reviews) | 4 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Luka Radulovic | Crydolphin Games, Caio Golfinho |
Side by side
- Both are Indie games on Steam.
- Quiet Thoughts (2021) is 2 years older than Keo and the Cosmic Crystals (2023).
- Quiet Thoughts is free; Keo and the Cosmic Crystals is paid (1.99 USD).
Quiet Thoughts vs Keo and the Cosmic Crystals — FAQ
- Should I play Quiet Thoughts or Keo and the Cosmic Crystals first?
- If you want chronology, Quiet Thoughts (2021) came out before Keo and the Cosmic Crystals (2023). 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 Quiet Thoughts and Keo and the Cosmic Crystals similar?
- They overlap on Indie 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.
- Is Quiet Thoughts free?
- Yes — Quiet Thoughts is a free-to-play Steam title. Keo and the Cosmic Crystals is paid (1.99 USD).