Live Steam player count comparison, updated every 10 minutes. Both are Simulation games.
Fallout Shelter is currently the more played game: 2,041 concurrent players on Steam right now vs 1,219 for Slime Rancher — about 1.7× more players. Slime Rancher counters with better Steam reviews: 98% positive vs 88%. Fallout Shelter is free to play, while Slime Rancher costs $19.99. Across all tracked metrics, Fallout Shelter leads 5 of 8.
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Tracked by Coilr since July 2026 · Steam polled every 10 minutes · methodology
| Metric | Fallout Shelter | Slime Rancher |
|---|---|---|
| Players right now | 2,041 | 1,219 |
| 24-hour peak | 2,298 | 1,339 |
| 7-day average | 1,723 | 1,039 |
| 30-day average | 1,723 | 1,039 |
| 30-day trend | — | — |
| Peak (tracked) | 2,298 | 1,339 |
| Steam reviews | 88% positive | 98% positive |
| Recent reviews (3 mo) | 83% positive | 97% positive |
| Total reviews | 81,835 | 155,346 |
| Owners (SteamSpy est.) | ~2,000,000 | ~2,000,000 |
| Release date | Mar 29, 2017 | Aug 1, 2017 |
| Price | Free to play | $19.99 |
Full stats: Fallout Shelter · Slime Rancher · add more games to this comparison →
Fallout Shelter currently has more players: 2,041 concurrent players on Steam vs 1,219 for Slime Rancher — about 1.7× more players.
Over the last 30 days Fallout Shelter averaged 1,723 concurrent players and Slime Rancher averaged 1,039. By that measure Fallout Shelter is currently the bigger game.
By Steam review score, Slime Rancher rates higher: 98% positive across 155,346 reviews vs 88% across 81,835 for Fallout Shelter. Fallout Shelter has the larger player base right now (2,041 vs 1,219 concurrent). Player counts, ratings, price and trend are compared side by side above.