I'm playing Bad North right now.
It's a fun roguelite, but it has real-time action. You basically start with 2 platoons, but as you progress you can meet other platoons on other islands. If you click on an platoon you can move the platoon or perform a special attack and you have to level up as you go. Platoons also have a specific class (after the first upgrade), so there are infantry units, pikemen and archers. Clicking on a platoon also makes time go really slow, so you can adjust your tactics as you go. Attacking goes automatically, but if the platoon is too far away they will await orders.
The enemies will come in boats and try to burn down the houses on the island. For every house not burned down after the final wave you'll get a number of coins, which you can then use to upgrade the platoons. You gotta really make the right decisions to protect all the houses, but later on you might have to sacrifice a building. The attackers will still need to be dealt with. You can also lose platoons and meet new ones again. Some platoons also have a special ability like increased damage, half price special skills, shorter ability cooldowns and knockback resistance (among others). After every island you can upgrade and/or choose a new island to go to. Islands usually show all sorts of enemies that are coming, but not always. Sometimes they're hidden.
6 bucks on the Steam Halloween sale right now. Highly recommended if you enjoy these types of games.
It can run on a potato and only takes 300mb to install.
https://store.steampowered.com/app/688420/Bad_North_Jotunn_Edition/