Live Steam player count comparison, updated every 10 minutes. Both are Simulation games.
Arma Reforger is currently the more played game: 16,262 concurrent players on Steam right now vs 15,642 for Umamusume: Pretty Derby — a similar number of players. Umamusume: Pretty Derby counters with better Steam reviews: 94% positive vs 80%.
Coilr tracks charts like this for every game — and playtime history for your own library.
Tracked by Coilr since May 2026 · Steam polled every 10 minutes · methodology
| Metric | Arma Reforger | Umamusume: Pretty Derby |
|---|---|---|
| Players right now | 16,262 | 15,642 |
| 24-hour peak | 17,977 | 15,977 |
| 7-day average | 15,286 | 12,804 |
| 30-day average | 15,286 | 9,101 |
| 30-day trend | — | +46% |
| Peak (tracked) | 18,344 | 29,459 |
| Steam reviews | 80% positive | 94% positive |
| Recent reviews (3 mo) | 86% positive | 93% positive |
| Total reviews | 54,569 | 58,351 |
| Owners (SteamSpy est.) | ~200,000 | — |
| Release date | Nov 15, 2023 | Jun 24, 2025 |
| Price | $39.99 | — |
Full stats: Arma Reforger · Umamusume: Pretty Derby · add more games to this comparison →
| Month | Arma Reforger | Umamusume: Pretty Derby | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| May 2026 | — | — | 6,717 | 11,038 |
| Jun 2026 | — | — | 6,272 | 10,194 |
| Jul 2026 (so far) | 14,199 | 18,344 | 9,305 | 29,459 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
Arma Reforger currently has more players: 16,262 concurrent players on Steam vs 15,642 for Umamusume: Pretty Derby — a similar number of players.
Over the last 30 days Arma Reforger averaged 15,286 concurrent players and Umamusume: Pretty Derby averaged 9,101. By that measure Arma Reforger is currently the bigger game.
By Steam review score, Umamusume: Pretty Derby rates higher: 94% positive across 58,351 reviews vs 80% across 54,569 for Arma Reforger. Arma Reforger has the larger player base right now (16,262 vs 15,642 concurrent). Player counts, ratings, price and trend are compared side by side above.
Umamusume: Pretty Derby averaged 9,101 concurrent players over the last 30 days, up 46% vs the previous 30 days. Its highest tracked player count is 29,459.