Dungeon of the ENDLESS™

This is a date specific achievement. Changing your Windows system clock DOES work, but I prefer to wait for the specific date organically.

1. Play the game any time between the dates January 21st and January 25th (any year)
2. You will unlock a temporary character Esseb Tarosh.
3. You must play the game with Esseb Tarosh and finish the game with him alive (any difficulty)

You will unlock Esseb Tarosh permanently if you are successful. I recommend using whichever pod you're most comfortable with on Too Easy (I personally prefer Library pod which makes towers OP.) Drill pod will not work since you can't "win" the game.

Complete this one as your last achievement unless you are into boredom or maybe bdsm...

Just do floor one over and over and over. I was averaging a complete floor in 1.5 mins (used Joleri & Skroig)

If you do find the exit early, it might be faster to send a person to go pick up the crystal. Picking up a crystal starts opening all the doors room by room. This could open multiple doors at once.

When you get the message that all doors are open, make sure the door on the map is fully open before abandoning your game. The message appears before the door counter increases.

Floor 1 has 11-17 doors per run. (16 was pretty rare. 17 doors is even more rare. got 1 out of 180 restarts).

So you may want to do this with Esseb Tarosh through 12 floors before the 25th of January, so doing it on too easy with escape pod is possible just learn the game with your 4 heroes and you will get there. You can keep Esseb Tarosh after completing floor 3 but just make sure to not let him die otherwise you will need to restart. I think you can do this on multiplayer since you can use him in there with your friends.

Of course, try to vary your characters as you do all the different required play-thrus for the achievements to minimize things.

On tip to make things easier. Start or try to get Wes in your play-thru, once at lvl 12, spam his urgent call ability to recruit as many heroes on the map. (try to keep them in defensible locations.)

Once a clear path is available to the exit, dismiss your current heroes (that you don't need) and recruit any missing heroes. When starting a new game, these newly recruited heroes will slow up as winning/completed.