Sweet Hamster Days, a live-action FMV game where players are reincarnated as a pet hamster, has been approved for release on Steam after initially being turned down by Valve.
While Valve never publicly disclosed the exact reason for the temporary ban—a common occurrence for titles featuring live-action explicitly themed imagery or ambiguous platform settings—developer studio Automaton successfully navigated the approval process. According to game designer Oda, the team adjusted the age rating settings and tweaked several undisclosed details before re-submitting the title.
"We still don’t know exactly how the platform saw things, but after revising details such as the age rating settings and re-submitting the game, it was eventually approved," Oda explained.
Grand Theft Auto V Meets Pet Simulation
The studio describes Sweet Hamster Days as a "being-taken-care-of adventure game"—an unprecedented genre pitch where players experience the story from the perspective of a hamster named Hamta. After dying and being reincarnated, the protagonist ends up as a household pet cared for by three sisters, who interact with the camera to simulate petting and pampering the player.
The unconventional concept stemmed from project overseer Katayama's unusual mix of past work experience and gaming habits:
Mascot Work: Katayama noted that during a former part-time job wearing mascot costumes, children and elderly people who usually ignored him suddenly became affectionate and warm.
GTA V Mechanics: Inspiration also came from Grand Theft Auto V's multi-protagonist switching system. Katayama realized he enjoyed living alternate lives through different characters, leading him to wonder what it would be like if one of those playable characters were a rodent instead of a human.
Riding the Asian Live-Action Dating Sim Wave
Underneath its eccentric narrative hook, Sweet Hamster Days is a direct response to the massive commercial surge of FMV visual novels and dating simulators across Asian markets.
Following the widespread success of Chinese hits like The Road to Empress and Korean titles such as Five Hearts Under One Roof, Japanese developers have begun entering the market with their own takes on interactive live-action storytelling. By combining standard FMV dating tropes with classic Isekai tropes—getting run over by "Truck-kun" and reborn as a pet—the studio aims to carve out a distinct identity in an increasingly crowded genre.