I hate posting questions because I figure its already out there and I missed it - but I really would love to know if there is a guide to what medals you can earn and what it takes to get the medal.

Thanks! <3 - Cat

Any guides that exist are so old that they no longer apply. Some you simply can't earn anymore because they are broken (Sandcastle), some were unique to plots (Restock War: Calvin Blackmoon) and others we have no idea how to earn them (Dark Matter Dice).

Just checked your medals and if you want to earn more, the easiest to get are Aboxalypse Champion and potion lottery winner. For Aboxalypse, its easy to win, even with a tier one pet because he does no damage to you, it just takes time to whittle him down. The potion lottery takes some dedication, basically buy tickets regularly until you win. The more sPs you dedicate to it, the more likely you are to win. I bought several megatickets daily for a couple of months before winning it.

You can also try for Dark Matter Dice medal, but since I don't know how/why its awarded, I can only recommend that you play the game daily until the medal shows up.

Polar Ice Completion isn't too hard either, but again takes dedication. I play regularly, setting my alert every time. My strategy has been to take the same path every time until I win, then pick a different path and play that one until i win.

Krypt Konquerer is way harder. It took me years to win it.

Leviathan Harpooning - I think you get it when you complete level 3, and levels 1-3 are not that hard to do.