Live Steam player count comparison, updated every 10 minutes. Both are Simulation games.
Planet Zoo is currently the more played game: 4,894 concurrent players on Steam right now vs 3,587 for Kerbal Space Program — about 36% more players. Kerbal Space Program counters with better Steam reviews: 96% positive vs 91%. Across all tracked metrics, Planet Zoo leads 5 of 8.
Coilr tracks charts like this for every game — and playtime history for your own library.
Tracked by Coilr since July 2026 · Steam polled every 10 minutes · methodology
| Metric | Kerbal Space Program | Planet Zoo |
|---|---|---|
| Players right now | 3,587 | 4,894 |
| 24-hour peak | 5,282 | 9,654 |
| 7-day average | 4,119 | 6,370 |
| 30-day average | 4,119 | 6,370 |
| 30-day trend | — | — |
| Peak (tracked) | 5,282 | 9,654 |
| Steam reviews | 96% positive | 91% positive |
| Recent reviews (3 mo) | 98% positive | 82% positive |
| Total reviews | 144,582 | 96,595 |
| Owners (SteamSpy est.) | ~2,000,000 | ~2,000,000 |
| Release date | Apr 27, 2015 | Nov 5, 2019 |
| Price | $39.99 | $44.99 |
Full stats: Kerbal Space Program · Planet Zoo · add more games to this comparison →
Planet Zoo currently has more players: 4,894 concurrent players on Steam vs 3,587 for Kerbal Space Program — about 36% more players.
Over the last 30 days Kerbal Space Program averaged 4,119 concurrent players and Planet Zoo averaged 6,370. By that measure Planet Zoo is currently the bigger game.
By Steam review score, Kerbal Space Program rates higher: 96% positive across 144,582 reviews vs 91% across 96,595 for Planet Zoo. Planet Zoo has the larger player base right now (4,894 vs 3,587 concurrent). Player counts, ratings, price and trend are compared side by side above.