Fish Tank Tycoon vs [1M Update] Undertale Multiverse Simulator 1.5
[1M Update] Undertale Multiverse Simulator 1.5 currently leads with 888 concurrent players against 660. On all-time peak the record belongs to [1M Update] Undertale Multiverse Simulator 1.5 at 1,278 concurrent players, versus 1,277. Momentum favours [1M Update] Undertale Multiverse Simulator 1.5: +27.9% week over week versus +5.2% for Fish Tank Tycoon. Lifetime, Fish Tank Tycoon has more visits (17.6M vs 1.2M). Full side-by-side history for Fish Tank Tycoon and [1M Update] Undertale Multiverse Simulator 1.5 is charted above.
Player count history
Head to head
| Metric | Fish Tank Tycoon | [1M Update] Undertale Multiverse Simulator 1.5 | Difference |
|---|---|---|---|
| Playing now | 660 | 888 | 228 |
| 24h peak | 1,096 | 1,112 | 16 |
| 24h average | 709 | 913 | 204 |
| 7-day peak | 1,271 | 1,273 | 2 |
| 7-day average | 733 | 838 | 105 |
| 30-day peak | 1,271 | 1,273 | 2 |
| All-time peak | 1,277 | 1,278 | 1 |
| 24h change | ▲ 14.9% | ▲ 1.3% | — |
| 7d change | ▲ 5.2% | ▲ 27.9% | — |
| Total visits | 17.6M | 1.2M | 16.4M (14.8×) |
| Visits (24h) | 94.8K | 40.4K | 54.4K (2.3×) |
| Visits (7d) | 730.2K | 270.9K | 459.3K (2.7×) |
| Favorites | 53.2K | 3.5K | 49.7K (15.4×) |
| Rating | 96.3% | 89.6% | — |
| Global rank (players) | #1,695 | #1,447 | of 7,127 |
| Trending score | -9.1 | 25.8 | — |
| Created | Apr 27, 2026 | May 22, 2026 | — |
| Genre | Simulation | Action | — |
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 — 10 days for Fish Tank Tycoon, 10 for [1M Update] Undertale Multiverse Simulator 1.5.