Choose Radium 2
Choose Radium 2 if you want the Steam Leaderboards side of the pairing. Radium 2 launched in 2017.
Radium 2 vs Boulder Smash
Radium 2 and Boulder Smash both land in Action, 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 share Action, Indie on Steam. Radium 2 (2017) is 9 years older than Boulder Smash (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 Boulder Smash
Choose Boulder Smash if you want the Gamepad Recommended side of the pairing. On Steam, it's the newer release (2026) and ships with the modern feature baseline. Boulder Smash launched in 2026.
Both Radium 2 and Boulder Smash sit in Action and 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
 Radium 2 |  Boulder Smash | |
|---|---|---|
| Released | 2017 | 2026 |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows, macOS, Linux | Windows, macOS |
| Steam Deck | Unrated | Unrated |
| Price | 2.99 USD | Price unknown |
| Steam reviews | 7 reviews | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Develobster | W4YN3R |
Side by side
- Both share Action, Indie on Steam.
- Radium 2 (2017) is 9 years older than Boulder Smash (2026).
Radium 2 vs Boulder Smash — FAQ
- Should I play Radium 2 or Boulder Smash first?
- If you want chronology, Radium 2 (2017) came out before Boulder Smash (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 Radium 2 and Boulder Smash similar?
- They overlap on Action, 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.