Big Brain Simulator vs OG Old T Tower Defense [Rewards Update]
Big Brain Simulator currently leads with 323 concurrent players against 203, a 1.6× advantage. On all-time peak the record belongs to Big Brain Simulator at 577 concurrent players, versus 292. Momentum favours OG Old T Tower Defense [Rewards Update]: +5.8% week over week versus -45.1% for Big Brain Simulator. Lifetime, Big Brain Simulator has more visits (199.3M vs 7.1M). Full side-by-side history for Big Brain Simulator and OG Old T Tower Defense [Rewards Update] is charted above.
Player count history
Head to head
| Metric | Big Brain Simulator | OG Old T Tower Defense [Rewards Update] | Difference |
|---|---|---|---|
| Playing now | 323 | 203 | 120 (1.6×) |
| 24h peak | 324 | 233 | 91 |
| 24h average | 194 | 172 | 22 |
| 7-day peak | 324 | 233 | 91 |
| 7-day average | 134 | 147 | 13 |
| 30-day peak | 378 | 233 | 145 (1.6×) |
| All-time peak | 577 | 292 | 285 (2.0×) |
| 24h change | ▲ 145.6% | ▲ 37.6% | — |
| 7d change | ▼ 45.1% | ▲ 5.8% | — |
| Total visits | 199.3M | 7.1M | 192.2M (27.9×) |
| Visits (24h) | 17.9K | 23.5K | 5.6K |
| Visits (7d) | 108.7K | 144.4K | 35.8K |
| Favorites | 1.3M | 78.9K | 1.2M (16.7×) |
| Rating | 83.0% | 92.3% | — |
| Global rank (players) | #2,968 | #3,430 | of 7,783 |
| Trending score | 87.2 | 32.9 | — |
| Created | Apr 13, 2020 | Jan 23, 2026 | — |
| Genre | Simulation | Strategy | — |
Other comparisons
Both games are sampled on the same schedule and plotted on a shared time axis, so the comparison is like for like. Peaks, averages and growth come from RoVitals's own recorded history — 12 days for Big Brain Simulator, 12 for OG Old T Tower Defense [Rewards Update].