Ace Pilot

The Evil Evens have taken to the skies in an attempt at deck domination! The only things stopping them are four intrepid Ace Pilots and your ace arithmetic skills.

Ace Pilot is a cooperative card game for one to four players (only one at present) that uses a standard deck of cards. Pilots flip through the deck until they reveal an even card, then attempt to defeat it using the arithmetic abilities of the pilots in play. This continues until either all pilots have been defeated or the deck has been expunged of those Evil Evens.

Each session is designed to be brief but challenging. Though some situations may seem impossible at first glance, most are winnable. And you'll feel oh-so-clever when you solve them.

https://www.strangehillgames.com/dump/AcePilot.html