Any tips on Crypt Creeper?

[Skwiggily]

Have a feeling I'll be stuck at 13/14 achievements since the Crypt Creeper mini game seems pretty dang RNG based in the later levels. Any tips from those that beat it? Highest level I got to was 18.

[JacobMIX]

Focus on getting more max health (6 max), and at least one hold slots from the temple.
As long as you kill a few extra enemies early, and play safe late game you should be good.

[Rushin]

Try to kill as many enemies as you can early into the run to max out the XP because XP is what matters.

Coins are barely useful, anything the shop sells you for coins gets depleted in a turn or two. So collect XP early, then towards the last few levels stop taking risks and just try to get to the exit. The boss requires 8 damage but you will most likely lose some sword/shield value while approaching it so you need a hold slot; max HP upgrades also help but an extra slot is lot more valuable imo.

Always try to store swords in the extra slot rather then shields. Suppose you put a +5 shield in a slot, then your sword depletes (partially with the shield too), and you face a 6 enemy. You will now take damage regardless and the slot didn't help at all. Be very conservative on the last few levels, try to keep maximum resources for the beginning of the next level (unlike early levels where you can arrive to the next level naked and survive anyway).

A few attempts into it you should be able to start "calculating" the paths easily which helps not only with survival but also at taking calculated risks. So "just play some more" is also a valid tip here.