World's Hardest Obi vs Build a Car Collection
World's Hardest Obi currently leads with 445 concurrent players against 209, a 2.1× advantage. On all-time peak the record belongs to Build a Car Collection at 569 concurrent players, versus 565. Lifetime, World's Hardest Obi has more visits (56.5M vs 2.4M). Full side-by-side history for World's Hardest Obi and Build a Car Collection is charted above.
World's Hardest Obi
445
playing now
565 24h peak · 56.5M visits
VS
[💎] Build a Car Collection
209
playing now
296 24h peak · 2.4M visits
Player count history
World's Hardest ObiBuild a Car Collection
Head to head
| Metric | World's Hardest Obi | Build a Car Collection | Difference |
|---|---|---|---|
| Playing now | 445 | 209 | 236 (2.1×) |
| 24h peak | 565 | 296 | 269 (1.9×) |
| 24h average | 314 | 203 | 111 (1.5×) |
| 7-day peak | 565 | 569 | 4 |
| 7-day average | 311 | 283 | 28 |
| 30-day peak | 565 | 569 | 4 |
| All-time peak | 565 | 569 | 4 |
| 24h change | ▲ 10.6% | ▼ 14.7% | — |
| 7d change | — | — | — |
| Total visits | 56.5M | 2.4M | 54M (23.3×) |
| Visits (24h) | 51.3K | 29.1K | 22.2K (1.8×) |
| Visits (7d) | 127K | 226.3K | 99.3K (1.8×) |
| Favorites | 25.4K | 112.7K | 87.4K (4.4×) |
| Rating | 38.7% | 97.7% | — |
| Global rank (players) | #1,975 | #2,952 | of 7,327 |
| Trending score | 2.2 | -60.5 | — |
| Created | Feb 16, 2024 | May 4, 2026 | — |
| Genre | Obby & Platformer | Simulation | — |
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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 — 3 days for World's Hardest Obi, 7 for Build a Car Collection.