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