Melatonin is a rhythm game about dreams and reality merging together. It uses animations and sound cues to keep you on beat without any intimidating overlays or interfaces. Harmonize through a variety of dreamy levels containing surprising challenges, hand-drawn art, and vibrant music.

| Poll | Players |
|---|---|
| 17:43 UTC | 14 |
| 28 Oct, 17:02 UTC | 14 |
Player counts over time, as we observed them.
Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology
| Month | Avg players | Kept | Compared with other games |
|---|---|---|---|
| LaunchDecember 2022 | 134 | — | The busier of its first two months |
| 3 months onMarch 2023 | 155 | 116% | Holds players well (better than 96% of 7,559 other games) |
| 12 months onDecember 2023 | 65 | 49% | Holds players well (better than 79% of 6,583 other games) |
Melatonin kept 116% of the average players it had at its launch in December 2022 after 3 months and 49% after 12 months. Monthly averages, ranked against every game we can score. How we count
| Month | Average | Change | Change % | Peak |
|---|---|---|---|---|
| October 2026Oct 2026 (so far) | 17 | +1 | +8.3% | 28 |
| September 2026Sept 2026 | 16 | −4 | −19.3% | 34 |
| August 2026Aug 2026 | 19 | −10 | −33.4% | 35 |
| July 2026Jul 2026 | 29 | +4 | +14% | 73 |
| June 2026Jun 2026 | 26 | −6 | −18.5% | 67 |
| May 2026May 2026 | 31 | +11 | +50.4% | 81 |
| April 2026Apr 2026 | 21 | −20 | −48.4% | 47 |
| March 2026Mar 2026 | 41 | +15 | +57.8% | 156 |
| February 2026Feb 2026 | 26 | −15 | −36.7% | 50 |
| January 2026Jan 2026 | 41 | −12 | −22.8% | 112 |
| December 2025Dec 2025 | 53 | +25 | +93.2% | 161 |
| November 2025Nov 2025 | 27 | −28 | −50.7% | 63 |
| October 2025Oct 2025 | 55 | +32 | +142% | 150 |
| September 2025Sept 2025 | 23 | −3 | −12.2% | 125 |
| August 2025Aug 2025 | 26 | −16 | −38.6% | 45 |
| July 2025Jul 2025 | 42 | +5 | +13.8% | 114 |
| June 2025Jun 2025 | 37 | +3 | +9.7% | 125 |
| May 2025May 2025 | 34 | −10 | −23.7% | 68 |
| April 2025Apr 2025 | 44 | −4 | −7.8% | 121 |
| March 2025Mar 2025 | 48 | +11 | +30.8% | 160 |
| February 2025Feb 2025 | 37 | −9 | −19.8% | 62 |
| January 2025Jan 2025 | 46 | −14 | −23.9% | 114 |
| December 2024Dec 2024 | 60 | +20 | +48.2% | 122 |
| November 2024Nov 2024 | 41 | −1 | −2.2% | 110 |
| Month | Average | Change | Change % | Peak |
|---|---|---|---|---|
| October 2024Oct 2024 | 42 | −1 | −3.2% | 77 |
| September 2024Sept 2024 | 43 | −20 | −32.2% | 87 |
| August 2024Aug 2024 | 64 | +2 | +3.8% | 241 |
| July 2024Jul 2024 | 61 | −1 | −2.2% | 126 |
| June 2024Jun 2024 | 63 | −5 | −7.2% | 156 |
| May 2024May 2024 | 67 | +21 | +46.7% | 142 |
| April 2024Apr 2024 | 46 | 0 | −0.6% | 161 |
| March 2024Mar 2024 | 46 | +5 | +11.1% | 119 |
| February 2024Feb 2024 | 42 | −15 | −26.7% | 75 |
| January 2024Jan 2024 | 57 | −8 | −12.6% | 116 |
| December 2023Dec 2023 | 65 | +12 | +22% | 163 |
| November 2023Nov 2023 | 53 | +13 | +30.6% | 144 |
| October 2023Oct 2023 | 41 | 0 | +0.6% | 82 |
| September 2023Sept 2023 | 41 | −21 | −33.9% | 75 |
| August 2023Aug 2023 | 61 | −37 | −37.4% | 137 |
| July 2023Jul 2023 | 98 | +45 | +86.6% | 218 |
| June 2023Jun 2023 | 53 | −15 | −22.3% | 199 |
| May 2023May 2023 | 68 | −51 | −43.3% | 137 |
| April 2023Apr 2023 | 119 | −36 | −23.1% | 225 |
| March 2023Mar 2023 | 155 | +61 | +65.8% | 322 |
| February 2023Feb 2023 | 93 | −40 | −30.1% | 179 |
| January 2023Jan 2023 | 134 | +60 | +82.1% | 269 |
| December 2022Dec 2022 | 73 | — | — | 171 |
Average and peak concurrent players each month, and the change in average players from the month before. Months before October 2026 are from a licensed historical archive.