A Japanese developer turned Wikipedia articles into a viral gacha game

Japanese developer harusugi has released Wikigacha, a browser game that takes the concept of Wikipedia's random article button and turns it into a full-blown gacha mechanic.

The game went viral in Japan just weeks after launch, with X users showing off their collections of rare – and often genuinely bizarre – pulls.

The idea is similar to opening booster packs in Pokemon TCG Pocket, except instead of Pokémon, you're pulling cards based on Wikipedia articles. Each pack contains five cards spanning seven rarity levels, with Legend Rare sitting at the top.

Rarity ties directly into Wikipedia's own article quality ratings – the better the article, the less likely it is to show up in a pack. Every 10 pulls unlocks a Gold Pack with more valuable cards. And yes, despite Wikipedia having millions of articles, duplicates are still very much possible.

Each card carries two stats: ATK and DEF. Attack is based on the article's popularity, calculated as page views multiplied by a rarity multiplier. Defense reflects the article's depth – content length, again multiplied by rarity.

Both values are pulled from Wikirank, effectively turning encyclopedia entries into playable units.

Three battle modes are currently available. Daily Raid pits you against one Raid Boss card per day using up to 10 cards from your collection. Single Random Battle and Team Battle let you go up against real opponents in one-on-one or five-on-five matchups. A Story Mode has been announced but is still in development.

Wikigacha is free to play in a browser with Japanese and English language support.