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