Oma’s Onderbroekoorlog

Players race to be the first to assemble a complete outfit for Grandma.

That sounds innocent… but it absolutely isn’t. A completely absurd outfit takes shape at the table: from glittery wool socks to a “miracle” wool bra.

Meanwhile, your opponents shamelessly try to steal your panties, spill coffee on your outfit, or completely sabotage your plans. You defend yourself with safety pins and play action cards to steer the chaos just a little bit.

It is a chaotic party and family game featuring plenty of interaction and, above all, lots of humor.

Oma’s Onderbroekoorlog (Grandma’s Underwear War) was designed by Sofie van Trigt.

Soof is an illustrator, designer, and the creator of Oma’s Onderbroekoorlog. She released her first original game in May 2026. With no prior experience in the games industry, she took the plunge and developed everything herself: from the initial concept and game design to the illustrations, graphic design, and publishing.

The result is a cheerful, chaotic game full of humor—a perfect reflection of her creative style. Come by and discover how a single wacky idea grew into a real game.