From the One Page Wars game series.

"A crack to Hadell has just opened. Now skeletons and demons are pouring out of it! As the only three true heroes around, it is your job to hold the fort until backup arrives." A One Page Wars series game.

A barbarian, cleric, and archer fight a growing pack of skeletons in a narrow church. Each unit and monster is rated for power, movement, attack range, and hit points.