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