Grim Nights

Grim Nights is a lovely little Managament, RTS, Tower Defense hybrid. It's not too expensive, it's not too long, and it has practically no replayability, but I enjoyed my time with it until I lost halfway through due to unforeseen enemy attack patterns.
The premise is that you have to survive 13 nights of increasingly difficult zombie (and other monster) onslaughts while also building up your town. The zombies approach from the right, your town builds up from the left - it's fairly straightforward. You got a few different resources, a few different buildings, some upgrades to those buildings... Each villager comes with their own speciality (if any), and can be assigned to a job.

There's not a lot to think about nor explore, sadly. Just assign all villagers to gather resources you need as fast as possible, everyone else to expand, while keeping enough troops to defend your base. There's a limit of about three melee warriors before they can't reach the enemy anymore since units don't stack. So basically everything should be poured into archers to mow the enemies down with a rain of arrows. (There are a few exceptions though, one of which managed to end my run, so maybe the balance isn't that off.)
At first the mine system seemed innovative, but it boiled down to just digging out rooms as fast as possible and strip mining all the resources within. Further, the ladder system was god awful due to the units lacking vertical pathfinding. I think perhaps the unit management and control was my largest gripe with the game, followed by the lack of meaningful choices.

Overall, I actually liked playing it. I considered giving it a spot on my list, but... Thinking back on it, it wasn't really that unique in any regard, lacked polish in some areas (though had plenty in others), didn't have content nor choice... How could I even recommend it, much less give it a spot? But still, a partial recommendation for Grim Nights, I guess. I think it's fun, even if not for long.