Project Delta vs Build a Zoo
Build a Zoo currently leads with 3,637 concurrent players against 3,541. On all-time peak the record belongs to Build a Zoo at 13,063 concurrent players, versus 7,707. Momentum favours Project Delta: +26.5% week over week versus -11.3% for Build a Zoo. Lifetime, Build a Zoo has more visits (521.4M vs 146.5M). Full side-by-side history for Project Delta and Build a Zoo is charted above.
Project Delta
3,541
playing now
5,633 24h peak · 146.5M visits
VS
[🌌]Build a Zoo🏆
3,637
playing now
5,665 24h peak · 521.4M visits
Player count history
Project DeltaBuild a Zoo
Head to head
| Metric | Project Delta | Build a Zoo | Difference |
|---|---|---|---|
| Playing now | 3,541 | 3,637 | 96 |
| 24h peak | 5,633 | 5,665 | 32 |
| 24h average | 4,196 | 3,701 | 495 |
| 7-day peak | 7,262 | 5,665 | 1,597 |
| 7-day average | 2,742 | 3,735 | 993 |
| 30-day peak | 7,262 | 5,665 | 1,597 |
| All-time peak | 7,707 | 13,063 | 5,356 (1.7×) |
| 24h change | ▲ 16.6% | ▲ 0.1% | — |
| 7d change | ▲ 26.5% | ▼ 11.3% | — |
| Total visits | 146.5M | 521.4M | 374.8M (3.6×) |
| Visits (24h) | 419.3K | 262.5K | 156.8K (1.6×) |
| Visits (7d) | 1.9M | 2M | 106.3K |
| Favorites | 428.3K | 3M | 2.6M (7.1×) |
| Rating | 77.6% | 96.3% | — |
| Global rank (players) | #466 | #452 | of 8,019 |
| Trending score | 190.4 | -3.2 | — |
| Created | Aug 26, 2021 | Jul 4, 2025 | — |
| Genre | Survival | Simulation | — |
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 — 13 days for Project Delta, 13 for Build a Zoo.