These activation cards are for use in the Gruntz 15mm SCI-FI Wargame. They are printed in a small boardgame size card format for use during a Gruntz game. The cards DO NOT come with plastic protection sleeves, the size is Mini American Board Game. If you enjoy a solo game with a narrative feel, these cards are ideal to help in determining a random activation and also help add to the narrative if you follow the bonus events on the cards. The cards make a game of Gruntz more dynamic, allowing for alternating activation of units using a random determination. I find it works great for getting more than 2 players into a game of Gruntz because the random nature of unit activation can involve all players, rather than waiting for the traditional I-GO-U-GO turn sequence. The main Gruntz 15mm SCI-FI rule book includes rules for using normal playing cards, however the same rules can be used with these cards which also add some interesting chaotic battlefield bonus effects. —description from the publisher