Live Steam player count comparison, updated every 10 minutes. Both are Action games.
SCP: Secret Laboratory is currently the more played game: 5,652 concurrent players on Steam right now vs 3,853 for Killing Floor 2 — about 47% more players. SCP: Secret Laboratory also has the better Steam reviews: 91% positive vs 88%. SCP: Secret Laboratory is free to play, while Killing Floor 2 costs $29.99. Across all tracked metrics, SCP: Secret Laboratory leads 9 of 9.
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 | Killing Floor 2 | SCP: Secret Laboratory |
|---|---|---|
| Players right now | 3,853 | 5,652 |
| 24-hour peak | 4,685 | 7,302 |
| 7-day average | 3,489 | 4,476 |
| 30-day average | 3,489 | 4,446 |
| 30-day trend | — | — |
| Peak (tracked) | 4,685 | 7,302 |
| Steam reviews | 88% positive | 91% positive |
| Recent reviews (3 mo) | 84% positive | 89% positive |
| Total reviews | 129,108 | 232,159 |
| Owners (SteamSpy est.) | ~2,000,000 | ~5,000,000 |
| Release date | Nov 18, 2016 | Dec 29, 2017 |
| Price | $29.99 | Free to play |
Full stats: Killing Floor 2 · SCP: Secret Laboratory · add more games to this comparison →
| Month | Killing Floor 2 | SCP: Secret Laboratory | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| May 2026 | — | — | 3,899 | 3,899 |
| Jun 2026 | — | — | 2,162 | 3,137 |
| Jul 2026 (so far) | 3,514 | 4,685 | 4,399 | 7,302 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
SCP: Secret Laboratory currently has more players: 5,652 concurrent players on Steam vs 3,853 for Killing Floor 2 — about 47% more players.
Over the last 30 days Killing Floor 2 averaged 3,489 concurrent players and SCP: Secret Laboratory averaged 4,446. By that measure SCP: Secret Laboratory is currently the bigger game.
By Steam review score, SCP: Secret Laboratory rates higher: 91% positive across 232,159 reviews vs 88% across 129,108 for Killing Floor 2. SCP: Secret Laboratory has the larger player base right now (5,652 vs 3,853 concurrent). Player counts, ratings, price and trend are compared side by side above.