XSCAPE

From BoardGameGeek:

XSCAPE is an abstract strategy game where players move around a hexagon board that is becoming more and more restricted with every move. In XSCAPE, players take turns moving one space at a time. After each move, place your Trail Chip on the space you just left to mark it as played. As you navigate the play area, the board evolves and blooms with color. Each space can be played on twice - after the first play, it remains open, but after the second play, it's sealed with a Black Trail Chip, indicating it's no longer available. Landing on an X to activate The Reaper. The player who activates The Reaper decides where it begins, with possible starting points marked by blue Xs. Once activated, The Reaper moves clockwise, destroying each space it lands on. After each player's move, The Reaper advances one space at a time. If you stand in its path, you're eliminated. The Reaper can also move onto already destroyed spaces. Outlast all other players (and the Reaper!) to claim victory!