Too Little Time

From BoardGameGeek:

Chip Theory Games is back with Too Little Time, a single-session boss-battler that remembers your actions from game to game. This new game set in the Too Many Bones universe leans into our bizarro humor and quirky personality as we break the fourth dimension (and the fourth wall). As the past, present, and future are torn apart, anything could happen anywhere. Time waits for no gearloc (or kobold)! Enter the Rift and handle encounters even in the midst of battle. Experiment with new masteries every game and skillfully navigate an unpredictable world. Every recruit in the Timeline Defense Force is unique, so whether you pick a gearloc or a kobold, you'll be playing a character with a variety all its own. Games take place over the course of two boss battles -- first against an enforcer, then facing off against a tyrant. Trigger encounters, gain experience points, and collect loot, all while you battle baddies and bosses in the past, present, and future. Your actions in every game will ripple through time and impact every subsequent play as you permanently unlock relics, collect and leave behind loot in each era, and interact with the mysterious and persistent Rift. Add to this a wide variety of bosses, locations, and character builds, and no two games are ever the same. -description from the publisher