Mermaid Testing vs (UPDATE 3.5) OC NPC Playground
(UPDATE 3.5) OC NPC Playground currently leads with 4,446 concurrent players against 1,204, a 3.7× advantage. On all-time peak the record belongs to (UPDATE 3.5) OC NPC Playground at 7,322 concurrent players, versus 3,842. Momentum favours (UPDATE 3.5) OC NPC Playground: +83.8% week over week versus +10.1% for Mermaid Testing. Lifetime, Mermaid Testing has more visits (681.5M vs 4.4M). Full side-by-side history for Mermaid Testing and (UPDATE 3.5) OC NPC Playground is charted above.
Mermaid Testing 🥭
1,204
playing now
3,842 24h peak · 681.5M visits
VS
(UPDATE 3.5) OC NPC Playground
4,446
playing now
7,322 24h peak · 4.4M visits
Player count history
Mermaid Testing(UPDATE 3.5) OC NPC Playground
Head to head
| Metric | Mermaid Testing | (UPDATE 3.5) OC NPC Playground | Difference |
|---|---|---|---|
| Playing now | 1,204 | 4,446 | 3,242 (3.7×) |
| 24h peak | 3,842 | 7,322 | 3,480 (1.9×) |
| 24h average | 2,280 | 5,509 | 3,229 (2.4×) |
| 7-day peak | 3,842 | 7,322 | 3,480 (1.9×) |
| 7-day average | 1,979 | 3,461 | 1,482 (1.7×) |
| 30-day peak | 3,842 | 7,322 | 3,480 (1.9×) |
| All-time peak | 3,842 | 7,322 | 3,480 (1.9×) |
| 24h change | ▼ 7.2% | ▼ 1.7% | — |
| 7d change | ▲ 10.1% | ▲ 83.8% | — |
| Total visits | 681.5M | 4.4M | 677.2M (156.2×) |
| Visits (24h) | 406K | 486.2K | 80.2K |
| Visits (7d) | 2.3M | 2.1M | 154.6K |
| Favorites | 535.2K | 60.2K | 475K (8.9×) |
| Rating | 77.7% | 88.3% | — |
| Global rank (players) | #991 | #272 | of 8,338 |
| Trending score | 50.5 | 219.8 | — |
| Created | Oct 21, 2020 | Jul 25, 2026 | — |
| Genre | Roleplay & Avatar Sim | — |
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 Mermaid Testing, 14 for (UPDATE 3.5) OC NPC Playground.