Your First Game in Gamemaker

Operius: conheça o jogo de arcade offline do Opera GX

Opera's Gaming Browser Adds a Built-In Game

Creator's Guide To The Opera GX Mobile Game Jam

Playtech sells YoYo Games to Opera for $10m

Steam Community :: GameMaker

Upload Your Game To GX.games 2023

New free mobile web games platform from YoYo Games and Opera, Pocket Gamer.biz

Can't Upload to Opera GX, Incorrect data. Check the output : r/gamemaker

Someone (presumably within YoYo/Opera) is modifying the Gamemaker Wikipedia page to put the subscription model in quite a biased positive light : r/ gamemaker

GameMaker lets you develop games for free — create the next best indie PC game