Published Apr 23, 2026, 2:50 PM EDT New free-to-keep on Steam promotion for the bite-sized Nocturnal is a great deal Steam users have until April 26 to claim a highly rated action side-scroller completely free Image: Steam Sign in to your Polygon.com account For a limited time, Steam users can download the side-scrolling action-platformer Nocturnal for free. The 2023 indie PC game is available completely free until April 26 at 10 a.m. PDT/1 p.m. EDT, thanks to Steam's free-to-keep promotion. While Steam's rotating free-to-keep games can be hit or miss, Nocturnal has been well-received by critics and players. The PC game has a "very positive" Steam user review rating, with more than 420 reviews. On Metacritic , Nocturnal has an average metascore of 81, or "generally favorable" assessment, while on OpenCritic , the game boasts a top critic average of 76. Normally, Nocturnal costs $16.99, so getting the PC version for free is a very good deal.…