| | Feb 18, 2022 |
| | Onegame |
| | 5 |
| | 3 |
| | 30 |
| | Free Spins |
| | 96% |
Double Happiness by One Game is an Asian-themed slot with a 5×3 grid and 30 paylines. Its volatility is rated 4 out of 5, and the RTP options are 94% and 96%.
A bonus trigger symbol awards 8, 10 or 15 free games, with awards adding together. Wins are doubled throughout the free games, and the feature can be triggered again while it is active.