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