Flocking Hell

Here's an excerpt from Flocking Hell's Steam description:

Flocking Hell is a turn-based strategy game where each level takes just 5 minutes.

Explore the fog to uncover resources, find and connect cities, fortify them, and draft powerful cards with special abilities. When you run out of turns, the demons invade and you watch as your defenses are put to the test. Win by defeating all the demons with at least one city standing. Fail, and the pastures will fall to the infernal forces.

• Bite-sized – explore the map, expand your cities, mine for crystals, and defend against the demons, in 5-minute levels that fit into your lunch break.
• Accessible – Flocking Hell features simple design, making it easy to learn but challenging to master.
• Low-stress – focus on discovery and growth. The demons will not interrupt until the level is done, at which point you can grab the popcorn and watch the outcome of your work.
• Customize your strategy – draft your deck from over 100 cards and recruit a team of guides from over 40 options, making each run different.
• Endless replayability – each run is unique, with a variety of demons to oppose you and a different mini-challenge in every level.
• Whimsical yet sinister – the world of Flocking Hell is full of cuddly sheep and magical cottages. Even the demons are adorable, at least until they start munching on lamb chops