If you like Dungeon Hero, you might like Fable on your Table, which uses some similar 2x2 mechanics for a more miniatures skirmish vibe, also with dungeon crawling elements.
Welcome Aboard Captain uses the same 2x2 system for solo sci-fi roleplaying. The pre-written adventures for that game are a lot like the pre-written adventures of Dungeon Hero, but are more linear and more complicated because you track a crew of multiple bridge officers and your ship. You can try Charon Wormhole, the tutorial adventure, for free to get a feel for what the game is like.
There have also been a few people who have made some fan expansions for Dungeon Hero, which you can find by searching here on itch.