Buriedbornes 【ダンジョンRPG】

This is a hardcore, turn-based dungeon crawler with roguelike elements, designed for short, intense play sessions that can be interrupted at any time. It offers high replayability due to procedural generation and challenging permadeath mechanics, and is playable offline and one-handed. The game is genuinely good for players who enjoy difficult, strategic gameplay and don't mind a steep learning curve, with no pressure to spend money.