Zoo Tycoon vs 99 Nights Zombie Tower Defense
Zoo Tycoon currently leads with 2,172 concurrent players against 514, a 4.2× advantage. On all-time peak the record belongs to Zoo Tycoon at 2,347 concurrent players, versus 825. Momentum favours Zoo Tycoon: +34.4% week over week versus +1.1% for 99 Nights Zombie Tower Defense. Lifetime, Zoo Tycoon has more visits (122.3M vs 53.8M). Full side-by-side history for Zoo Tycoon and 99 Nights Zombie Tower Defense is charted above.
Zoo Tycoon 🐣
2,172
playing now
2,347 24h peak · 122.3M visits
VS
99 Nights Zombie Tower Defense
514
playing now
701 24h peak · 53.8M visits
Player count history
Zoo Tycoon99 Nights Zombie Tower Defense
Head to head
| Metric | Zoo Tycoon | 99 Nights Zombie Tower Defense | Difference |
|---|---|---|---|
| Playing now | 2,172 | 514 | 1,658 (4.2×) |
| 24h peak | 2,347 | 701 | 1,646 (3.3×) |
| 24h average | 1,852 | 492 | 1,360 (3.8×) |
| 7-day peak | 2,347 | 769 | 1,578 (3.1×) |
| 7-day average | 1,411 | 450 | 961 (3.1×) |
| 30-day peak | 2,347 | 769 | 1,578 (3.1×) |
| All-time peak | 2,347 | 825 | 1,522 (2.8×) |
| 24h change | ▲ 19.1% | ▲ 7.7% | — |
| 7d change | ▲ 34.4% | ▲ 1.1% | — |
| Total visits | 122.3M | 53.8M | 68.4M (2.3×) |
| Visits (24h) | 141.7K | 65.5K | 76.2K (2.2×) |
| Visits (7d) | 863.1K | 461K | 402.1K (1.9×) |
| Favorites | 403.3K | 3.9M | 3.5M (9.8×) |
| Rating | 84.0% | 91.5% | — |
| Global rank (players) | #942 | #2,353 | of 7,783 |
| Trending score | 100.4 | 23.9 | — |
| Created | Oct 24, 2017 | Sep 7, 2025 | — |
| Genre | Simulation | Survival | — |
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 Zoo Tycoon, 12 for 99 Nights Zombie Tower Defense.