I've recently gotten into "Enter the Gungeon" a roguelike dungeon-crawling RPG completely themed around guns and gun related objects (ex. The staple enemies are living bullet shells with guns). Every time you die, you lose your progress and have to start from the top of the "Gungeon" all over again, adding an extra layer of challenge to an already tough game. 9/10 would recommend to anybody who's into dungeon-crawlers, challenging games, and gun puns. Available for PC and most recent consoles.