Here is the full list of all 36 Kingdoms CCG achievements.
Unlock Gate 1
Win 25 Battles
Collect a card in the “Promo” set
Win 150 Battles
Win 500 Battles
Win 1500 Battles
Play the game 10 times
Play the game 50 times
Unlock Gate 2
Unlock Gate 3
Unlock Gate 4
Unlock Gate 5
Unlock Gate 6
Win 250 Battles using Holy Heroes
Win 250 Battles using Unholy Heroes
Win 250 Battles using Mystical Heroes
Win 250 Battles using Elemental Heroes
Win 250 Battles using Alchemy Heroes
Win 250 Battles using Ancient Heroes
Collect every card in the “Core” Set
Win an arena battle in 15+ turns
Win a battle with 25+ HP
Deal 15+ damage to enemy Hero in one turn
Play 20+ Spell cards in one battle
Play 20+ Creature cards in one battle
Play 20+ Gear cards in one battle
Play 5+ cards in one turn
Win an arena battle before turn 3
Win an arena battle spending 5 or less Mana
Craft 5 cards
Craft 25 cards
Collect every card in the “Eve” Set
Collect every card in the “Rise” Set
Collect every card in the “Tribes” Set
Craft 150 cards
Win a battle with 25+ Mana