Live Steam player count comparison, updated every 10 minutes. Both are Action games.
Killing Floor 2 is currently the more played game: 4,271 concurrent players on Steam right now vs 1,700 for Counter-Strike: Source — about 3× more players. Counter-Strike: Source counters with better Steam reviews: 96% positive vs 88%. Across all tracked metrics, Counter-Strike: Source leads 6 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 | Counter-Strike: Source | Killing Floor 2 |
|---|---|---|
| Players right now | 1,700 | 4,271 |
| 24-hour peak | 3,871 | 4,685 |
| 7-day average | 2,431 | 3,460 |
| 30-day average | 10,684 | 3,460 |
| 30-day trend | −46% | — |
| Peak (tracked) | 37,913 | 4,685 |
| Steam reviews | 96% positive | 88% positive |
| Recent reviews (3 mo) | 96% positive | 84% positive |
| Total reviews | 192,320 | 129,108 |
| Owners (SteamSpy est.) | ~10,000,000 | ~2,000,000 |
| Release date | Oct 31, 2004 | Nov 18, 2016 |
| Price | $9.99 | $29.99 |
Full stats: Counter-Strike: Source · Killing Floor 2 · add more games to this comparison →
| Month | Counter-Strike: Source | Killing Floor 2 | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| May 2026 | 31,766 | 32,622 | — | — |
| Jun 2026 | 16,881 | 37,913 | — | — |
| Jul 2026 (so far) | 8,144 | 27,858 | 3,474 | 4,685 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
Killing Floor 2 currently has more players: 4,271 concurrent players on Steam vs 1,700 for Counter-Strike: Source — about 3× more players.
Over the last 30 days Counter-Strike: Source averaged 10,684 concurrent players and Killing Floor 2 averaged 3,460. By that measure Counter-Strike: Source is currently the bigger game.
By Steam review score, Counter-Strike: Source rates higher: 96% positive across 192,320 reviews vs 88% across 129,108 for Killing Floor 2. Killing Floor 2 has the larger player base right now (4,271 vs 1,700 concurrent). Player counts, ratings, price and trend are compared side by side above.
Counter-Strike: Source averaged 10,684 concurrent players over the last 30 days, down 46% vs the previous 30 days. Its highest tracked player count is 37,913.