Mermaid Testing vs Mysterious Killers
Mermaid Testing currently leads with 1,094 concurrent players against 0, a 1094.0× advantage. On all-time peak the record belongs to Mermaid Testing at 3,218 concurrent players, versus 3,123. Lifetime, Mermaid Testing has more visits (680.4M vs 943.5K). Full side-by-side history for Mermaid Testing and Mysterious Killers is charted above.
Mermaid Testing 🥭
1,094
playing now
2,260 24h peak · 680.4M visits
VS
Mysterious Killers 🔪
0
playing now
12 24h peak · 943.5K visits
Player count history
Mermaid TestingMysterious Killers
Head to head
| Metric | Mermaid Testing | Mysterious Killers | Difference |
|---|---|---|---|
| Playing now | 1,094 | 0 | 1,094 |
| 24h peak | 2,260 | 12 | 2,248 (188.3×) |
| 24h average | 1,523 | 1 | 1,522 (1523.0×) |
| 7-day peak | 3,166 | 2,994 | 172 |
| 7-day average | 1,808 | 1,284 | 524 |
| 30-day peak | 3,166 | 2,994 | 172 |
| All-time peak | 3,218 | 3,123 | 95 |
| 24h change | ▼ 13.9% | ▼ 99.9% | — |
| 7d change | ▲ 5.5% | — | — |
| Total visits | 680.4M | 943.5K | 679.4M (721.1×) |
| Visits (24h) | 260.3K | 14 | 260.3K (18591.3×) |
| Visits (7d) | 2.1M | 508K | 1.6M (4.1×) |
| Favorites | 533.2K | 35.9K | 497.4K (14.9×) |
| Rating | 77.7% | 75.1% | — |
| Global rank (players) | #1,106 | #7,194 | of 7,213 |
| Trending score | -49.5 | 0.0 | — |
| Created | Oct 21, 2020 | Jul 29, 2026 | — |
| Genre | Roleplay & Avatar Sim | 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 — 10 days for Mermaid Testing, 4 for Mysterious Killers.