


by ipip·Casual
AI tools assisted with localizing in-game text; no content is generated during gameplay.
Official TrailerA cursed incremental horror game with PSX-style graphics. Find a strange CD-ROM, boot it on your bedroom computer, and click prime numbers to buy upgrades and automate the search, while something on the other side of the screen takes an interest in you. ████████████████████ Belphegor's ██████!
Shares AI uses or genres with Idle Primes


Satoshi Onishi · Casual
AI disclosure
GameDB AI label
AI in 1 of 8 areasGenerative AI tools assisted with localization of in-game text into multiple languages.
Generative AI tools were used to assist with the localization of in-game text into multiple languages. All original game content, writing, art and design were created or licensed by the developer. AI is not used to generate content while the game is running.
Players · followers
Last 7 days, hourly · now 0 · 24h peak 0
22 now · Daily snapshot of public Steam data
Collecting dataGameDB started tracking this game on Sep 23, 2026. The chart fills in as daily snapshots arrive; the latest reading is 22.
Released chart · Nov 3 – Nov 9
Trending · Released
Among 6,617 released games
#1530Trending · Casual
Among 3,356 released casual games
#823Trending · Translation
Among 1,434 released games with AI translation
#2419Top · Steam followers
22 followers
Released games rank by momentum: peak players over 24 hours, growth against the previous days and new reviews, with a launch boost that fades over the first week. Released and upcoming games are charted separately; estimates and stars are never mixed in.
Made by
This page is built automatically from public Steam data and refreshed several times a day. Claim it to tell the story behind the game — no claim is needed to stay listed.

