Nessos

The original game name translates to "Bomb & Treasures", and the deck consists of cards containing those two types of items, with the treasures being numbered 1-10 and the bombs not being numbered because honestly it's going to kill you no matter which number it might say. On a turn, you give another player a card face down; if the card is a treasure, you must state truthfully the number on it, and if it's a bomb, you make up whatever number you want. The other player can accept the card, send it back to you, or add a card to it (following the same rules) and give it to someone else.

Your goal is to collect cards worth a certain number of points, but if you collect three bombs, you're out of the game. Boom. Thus, Nessos is almost a pure bluffing game, with you also playing the odds and trying to get sets since having a 1, 2 and 3 is worth 10 points instead of 6.