Mausritter is an OSR/NSR game in which you play as mice going on adventures (and often delving dungeons for treasure). While Mausritter's inventory is derived from Cairn (which derived its system from Knave), I have a soft spot for the Mausritter inventory slots based on how they fit nicely on the character sheet. I think this sort of inventory system is great for players learning how to play TTRPGs since it's so tactile and presents you with your tools in a clear manner. The conditions are also interesting, in that they steal inventory slots. Once you start accruing conditions or treasure, you have to make the decision whether to discard items, or to be encumbered and be at extreme risk from traps and ambushes.
The game is free at itch.io: https://losing-games.itch.io/mausritter
