It appears that tunneler is a pixel-based game (not sure whether there is a commonly used term for that, but I mean games like Lemmings or Scorched Earth or Lie

It appears that tunneler is a pixel-based game (not sure whether there is a commonly used term for that, but I mean games like Lemmings or Scorched Earth or Liero or Noita which are grid-based at pixel precision). It is not clear how to make a hyperbolic pixel-based game because there is no fixed relation between the map and the screen pixels. (This is also why HyperRogue cannot use pixel art.) Of course, one could still just pick a dense grid and use it instead of the actual pixels. There is nothing very close to Tunneler, but there is an Asteroids clone mini-game inside HyperRogue, and a "shmup mode" which is real-time and can be played in local coop.