Particle Hearts
Release date: Aug 25, 2025
Developers: Underwater Fire
Publishers: First Break Labs
Genres: Adventure, Casual, Indie, RPG
Categories: Single-player, Steam Achievements, Full controller support, Steam Cloud, Family Sharing
Supported languages: English, French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Polish

Particle Hearts is a 3rd-person adventure game where you explore a world made entirely of particles. Use special abilities to manipulate those particles, solve puzzles, avoid detection, and navigate this sinister and beautiful land. Along the way, meet various creatures, some of which will help you understand your purpose and others who are tasked with hiding it from you. Collect memories, find hidden paths, and piece together your connection to this land that isn’t always what it seems. ■ Gain multiple abilities that allow you to manipulate the particles around you. ■ Use your abilities to solve puzzles, evade enemies, and gain access to hidden areas. ■ Freely explore open environments any way you’d like. ■ Experience a story where the line between friend and foe is often blurred. Meet various creatures that help you unravel your purpose in this land. 

Press reviews: “I can't give this game enough praise.” 9.5/10 – Gaming Cypher “[Particle Hearts] could well make an impression on players eager for this kind of experience and be among the year's favorites in indie games.” 8/10 – G Pour Geek “Steam Deck OLED is locked at 90 FPS at 720p, and it looks gorgeous on there.” 4/5 – The Outerhaven