Here is the full list of all 58 Paladins achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Have over 30 different champions at mastery level 20 or higher
Get a daily reward 7 days in a row
Have over 30 different champions at mastery level 15 or higher
Have over 30 different champions at mastery level 10 or higher
Play 25 hours with a player from your friends list in your party.
Earn over 1,000,000 Gold over your play history
Kill an enemy player who is on a 15 killstreak or higher.
400 Double Kills.
Have a Paladins account over 1 year old
200 Double Kills.
Play 100 matches while in a party.
Play over 300 matches
Survive more than 50 battles with less than 10% health.
100 Double Kills
Earn over 500,000 Gold over your play history
Build your own custom loadout
Play 10 hours with a player from your friends list in your party.
Play 50 matches while in a party.
10 Champions at Mastery 5.
Reach level 30 during the Paladins Beta.
50 Double Kills.
9 Champions at Mastery 5.
8 Champions at Mastery 5.
7 Champions at Mastery 5.
Play 5 hours with a player from your friends list in your party.
6 Champions at Mastery 5.
Play 20 matches while in a party.
5 Champions at Mastery 5.
Play 10 matches while in a party.
4 Champions at Mastery 5.
Unlock Ranked
Kill more than 20 enemy champions in a single match.
Kill an enemy player from over 300 units away.
Kill a player with an environmental hazard.
Play a match while in a party.
3 Champions at Mastery 5.
Land 5 headshots in a row without missing.
2 Champions at Mastery 5.
Spend over 100,000 Credits in the item store over all your matches
Reach a 20 kill streak in a match
Deal damage to every enemy champion in a match before any of them damage you.
Heal over 100,000 health in a match
10 Double Kills.
Kill an enemy champion after they had already killed you.
Kill an enemy player while you are at or below 50 Health.
Get a killing blow after the round has ended.
Shield over 200,000 damage in a match
1 Champion at Mastery 5.
Deal more than 100,000 damage during a match.
Unlock 100 Cards.
Win a match where the enemy team scored no points.
Die to an environmental hazard.
Kill a player in the air who is over 100 units above the ground.
Complete the Paladins Tutorial.
Play 100 hours with a player from your friends list in your party.
Play 250 hours with a player from your friends list in your party.
Be the only player alive in a match.
Reach Master in Ranked