Live Steam player count comparison, updated every 10 minutes. Both are Action / Adventure games.
Portal 2 is currently the more played game: 1,722 concurrent players on Steam right now vs 1,533 for Assassin's Creed® Unity — a similar number of players. Portal 2 also has the better Steam reviews: 99% positive vs 78%. Assassin's Creed® Unity is currently 75% off on Steam. Across all tracked metrics, Portal 2 leads 9 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
| Metric | Assassin's Creed® Unity | Portal 2 |
|---|---|---|
| Players right now | 1,533 | 1,722 |
| 24-hour peak | 1,587 | 2,449 |
| 7-day average | 972 | 1,783 |
| 30-day average | 972 | 2,145 |
| 30-day trend | — | +50% |
| Peak (tracked) | 1,587 | 3,960 |
| Steam reviews | 78% positive | 99% positive |
| Recent reviews (3 mo) | 70% positive | 98% positive |
| Total reviews | 84,513 | 463,900 |
| Owners (SteamSpy est.) | ~2,000,000 | ~5,000,000 |
| Release date | Nov 11, 2014 | Apr 17, 2011 |
| Price | $7.49 (−75%) | $9.99 |
Full stats: Assassin's Creed® Unity · Portal 2 · add more games to this comparison →
| Month | Assassin's Creed® Unity | Portal 2 | ||
|---|---|---|---|---|
| Avg | Peak | Avg | Peak | |
| Apr 2026 | 498 | 498 | 1,328 | 1,743 |
| May 2026 | — | — | 1,329 | 1,986 |
| Jun 2026 | — | — | 1,659 | 3,790 |
| Jul 2026 (so far) | 979 | 1,587 | 2,194 | 3,960 |
Monthly average and peak concurrent players on Steam, from Coilr's own tracking (10-minute polls, hourly beyond 30 days).
Portal 2 currently has more players: 1,722 concurrent players on Steam vs 1,533 for Assassin's Creed® Unity — a similar number of players.
Over the last 30 days Assassin's Creed® Unity averaged 972 concurrent players and Portal 2 averaged 2,145. By that measure Portal 2 is currently the bigger game.
By Steam review score, Portal 2 rates higher: 99% positive across 463,900 reviews vs 78% across 84,513 for Assassin's Creed® Unity. Portal 2 has the larger player base right now (1,722 vs 1,533 concurrent). Player counts, ratings, price and trend are compared side by side above.
Portal 2 averaged 2,145 concurrent players over the last 30 days, up 50% vs the previous 30 days. Its highest tracked player count is 3,960.