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