1KM1MT website blurb:
It is some time after the Creation and before the Great Flood. War rages across the Heavens. Some angels sinned against god, and were exiled from Heaven. Others chose to rebel against the Lord. Under Samael’s leadership, these fallen angels wage war against to forces of the Creator.
In every war, there is espionage. You have been chosen by the Lord to infiltrate the rebel angels, and sabotage their actions from within. But is it rebellion or obedience to sin if God asks you to?
This 24 hour rpg is largely freeform with a simple aspect/trait definition of characters and a bluffing/bidding conflict resolution mechanic based on Liar's Dice. The author's notes found at the end of the rules illuminate some of the designer's choices.