Live Steam player count comparison, updated every 10 minutes. Both are Action games.
Halo: The Master Chief Collection is currently the more played game: 7,220 concurrent players on Steam right now vs 3,035 for ULTRAKILL — about 2.4× more players. ULTRAKILL counters with better Steam reviews: 97% positive vs 92%. Across all tracked metrics, Halo: The Master Chief Collection leads 6 of 8.
Coilr tracks charts like this for every game — and playtime history for your own library.
Tracked by Coilr since June 2026 · Steam polled every 10 minutes · methodology
| Metric | Halo: The Master Chief Collection | ULTRAKILL |
|---|---|---|
| Players right now | 7,220 | 3,035 |
| 24-hour peak | 7,749 | 4,090 |
| 7-day average | 4,033 | 2,899 |
| 30-day average | 4,149 | 2,906 |
| 30-day trend | −12% | — |
| Peak (tracked) | 8,796 | 4,090 |
| Steam reviews | 92% positive | 97% positive |
| Recent reviews (3 mo) | 89% positive | 97% positive |
| Total reviews | 260,205 | 237,278 |
| Owners (SteamSpy est.) | ~5,000,000 | ~5,000,000 |
| Release date | Dec 3, 2019 | Sep 3, 2020 |
| Price | $39.99 | $29.99 |
Full stats: Halo: The Master Chief Collection · ULTRAKILL · add more games to this comparison →
| Month | Halo: The Master Chief Collection | ULTRAKILL | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| Jun 2026 | 4,493 | 8,796 | 3,660 | 3,768 |
| Jul 2026 (so far) | 4,085 | 7,749 | 2,990 | 4,090 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
Halo: The Master Chief Collection currently has more players: 7,220 concurrent players on Steam vs 3,035 for ULTRAKILL — about 2.4× more players.
Over the last 30 days Halo: The Master Chief Collection averaged 4,149 concurrent players and ULTRAKILL averaged 2,906. By that measure Halo: The Master Chief Collection is currently the bigger game.
By Steam review score, ULTRAKILL rates higher: 97% positive across 237,278 reviews vs 92% across 260,205 for Halo: The Master Chief Collection. Halo: The Master Chief Collection has the larger player base right now (7,220 vs 3,035 concurrent). Player counts, ratings, price and trend are compared side by side above.
Halo: The Master Chief Collection averaged 4,149 concurrent players over the last 30 days, down 12% vs the previous 30 days. Its highest tracked player count is 8,796.