Live Steam player count comparison, updated every 10 minutes. Both are Action / Adventure games.
Batman™: Arkham Knight is currently the more played game: 2,260 concurrent players on Steam right now vs 1,808 for Portal 2 — about 25% more players. Portal 2 counters with better Steam reviews: 99% positive vs 90%. Across all tracked metrics, Portal 2 leads 5 of 9.
Coilr tracks charts like this for every game — and playtime history for your own library.
Tracked by Coilr since April 2026 · Steam polled every 10 minutes · methodology
Batman™: Arkham Knight has had the higher daily player count for the last 15 days — every day since Coilr began tracking both games.
Days tracked
15
Current streak
15 days
Batman™: Arkham Knight
Lead changes
0
Closest gap
12%
Apr 14, 2026
How this works: each game's daily average concurrent players (from Coilr's 10-minute Steam polls), compared on the 15 days where both games have data — whichever averages higher leads that day. methodology
| Metric | Batman™: Arkham Knight | Portal 2 |
|---|---|---|
| Players right now | 2,260 | 1,808 |
| 24-hour peak | 2,960 | 2,694 |
| 7-day average | 2,237 | 1,917 |
| 30-day average | 2,237 | 2,114 |
| 30-day trend | — | +50% |
| Peak (tracked) | 2,960 | 3,960 |
| Steam reviews | 90% positive | 99% positive |
| Recent reviews (3 mo) | 95% positive | 98% positive |
| Total reviews | 157,783 | 463,359 |
| Owners (SteamSpy est.) | ~2,000,000 | ~5,000,000 |
| Release date | Jun 23, 2015 | Apr 17, 2011 |
| Price | $19.99 | $9.99 |
Full stats: Batman™: Arkham Knight · Portal 2 · add more games to this comparison →
| Month | Batman™: Arkham Knight | Portal 2 | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| Apr 2026 | 1,690 | 2,216 | 1,328 | 1,743 |
| May 2026 | — | — | 1,329 | 1,986 |
| Jun 2026 | — | — | 1,659 | 3,790 |
| Jul 2026 (so far) | 2,249 | 2,960 | 2,288 | 3,960 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
Batman™: Arkham Knight currently has more players: 2,260 concurrent players on Steam vs 1,808 for Portal 2 — about 25% more players.
Over the last 30 days Batman™: Arkham Knight averaged 2,237 concurrent players and Portal 2 averaged 2,114. By that measure Batman™: Arkham Knight is currently the bigger game.
Not in Coilr's head-to-head tracking: Batman™: Arkham Knight has had the higher daily average concurrent player count on Steam on every one of the 15 days both games have been tracked.
By Steam review score, Portal 2 rates higher: 99% positive across 463,359 reviews vs 90% across 157,783 for Batman™: Arkham Knight. Batman™: Arkham Knight has the larger player base right now (2,260 vs 1,808 concurrent). Player counts, ratings, price and trend are compared side by side above.
Portal 2 averaged 2,114 concurrent players over the last 30 days, up 50% vs the previous 30 days. Its highest tracked player count is 3,960.