If you like inventory tetris, check out the dungeon crawler Backpack Hero

rockpapershotgun.com:

Excellent roguelikelike dungeon crawler Backpack Hero launched into early access this week, and it's absolutely worth a go if you enjoy shuffle items around your inventory grid. Backpack Hero is all about arranging weapons and items inside your massive sack to develop powerful synergies, see. Some items buff items touching them, while others benefit from empty spaces, or some insist upon being in a certain grid row, and some even move around by themselves. The buildcrafting gets fiendishly fun as your critter delves deeper into dungeons in search of a giant hunk of cheese.

The basic premise: you're a cute critter headed into dungeons, bashing baddies and gathering loot along the way. With full knowledge of the enemy's next move each turn, you use limited supplies of energy and mana to swing swords, cast spells, apply (and suffer) buffs and debuffs, block attacks, and such. Except you have no character class and don't equip any spells or items. Your build is determined by the items crammed into your massive backpack, and everything you are carrying is always equipped.

It tends to start simple. You'll have three energy points to use each turn, a shield which adds a number of block points when used (at a cost of one energy), a sword which does a bit of damage (ditto), and a consumable meal which replensishes energy. Maybe you'll soon find an item of armour which passively adds a small amount of block each turn. Maybe a two-energy weapon with does more damage, or a zero-energy weapon which does less. Then a magic wand which can cast a spell but needs to be touching a mana source. Maybe you'll find a bow, whose arrows grow stronger depending on how many empty spaces are to their right. And then it spirals into complex