Wargroove (NSW) is a decent substitute for Advance Wars that hasn’t released a new game for over a decade. For being an indie game it is very polished and well put together. That being said it isn’t as good as I remember the Advance Wars game being. My biggest gripe is that the level design and enemy AI leads to all stages feeling the same. I could go through the entire game without changing my strategy.
Monster Boy and the Cursed Kingdom (NSW) is probably the best metroidvania I’ve played. It excels at combat, platforming, and puzzles. I’m constantly being challenged without becoming too frustrated with the difficulty. Levels are short and focused. There is very little backtracking. So far I’ve unlocked three monster forms and they all feel very different.