Here is the full list of all 30 Steamalot: Epoch's Journey achievements.
Make a deck of only steam characters.
Beat the secret level on hard.
Beat the secret level on easy.
Complete the campaign on hard.
Beat 6-7 (it's level 42)
Complete the campaign on easy.
Beat 5-7
Get all 75 base cards.
Beat 4-7
Beat 3-7
42nd PvP win
Win your first PvP game.
Win PvP with 4 or fewer characters in a deck.
Beat 2-7
Have your 42nd card added to your library.
Max level a card.
Miss 4 times in a row
Kill 50 beasts.
Beat 1-7
Win any battle using only common characters.
First play after first loss
First loss
Use a farmer to strike finishing blow in a battle.
Complete Card Combine Tutorial
Complete leveling tutorial
Use a mechanic card.
Beat level 1-1
End a turn without playing a card.
Edit your deck 3 times.
Complete Main Tutorial