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