Embryo Machine is a tactical mecha RPG in a medieval world that recently got a fan translation, and it has one of the more unique battle systems I've seen in a while. When a round of combat starts, all players and the GM write down the next two actions they want to take in secret, then everyone reveals what they wrote, and then all first actions are resolved at the exact same time, followed by all second actions. This means it's all about predicting what both the enemies and your allies are going to do, and if someone gets it wrong, then there's collisions, targets moving out of range, and probably some general chaos. If this reminds you of the Neo Geo Pocket Color game Faselei, then congratulations on being as big of a nerd as I am! And also on already knowing how engaging this strange form of tactical combat can be.

Outside of that, it's low crunch outside of the mech and moderate crunch otherwise. There are hit location rolls, but you don't need to keep track of HP for individual parts. Instead, you just check whether the damage rolled exceeded a threshold for that location, and if so, the target loses something equipped there. That combined with the fact that you can loot defeated enemies' surviving parts makes me think this could end up being a game where you're constantly swapping out parts over the course of a campaign as they get destroyed in battle.

All that makes this game something I really want to try. If you want to take a look at this thing yourself, you can find the translation here. I should also note that there's a tactical board game form of this as well, and that actually got an official localization from Lion's Wing Press that you can buy here.