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