Here is the full list of all 42 Elden Ring trophies - there are 24 bronze, 14 silver, 3 gold and 1 platinum.
Obtained all trophies
Acquired all legendary sorceries and incantations
Acquired all legendary talismans
Acquired all legendary ashen remains
Acquired all legendary armaments
Achieved the "Lord of Frenzied Flame" ending
Achieved the "Elden Lord" ending
Achieved the "Age of the Stars" ending
Defeated Lichdragon Fortissax
Defeated Ancestor Spirit
Defeated Mohg, the Omen
Defeated Godskin Noble
Defeated Regal Ancestor Spirit
Defeated Dragonlord Placidusax
Defeated Shardbearer Malenia
Defeated Loretta, Knight of the Haligtree
Defeated Shardbearer Mohg
Defeated Hoarah Loux, Warrior
Upgraded any armament to its highest stage
Defeated Maliketh the Black Blade
Defeated Godskin Duo
Defeated Shardbearer Rykard
Used kindling to set the Erdtree aflame
Defeated Fire Giant
Defeated Astel, Naturalborn of the Void
Defeated Dragonkin Soldier of Nokstella
Defeated Valiant Gargoyles
Defeated Commander Niall
Defeated Shardbearer Morgott
Defeated Godfrey, First Elden Lord
Defeated Royal Knight Loretta
Defeated Mimic Tear
Defeated Shardbearer Radahn
Defeated Elemer of the Briar
Defeated the Leonine Misbegotten
Defeated Magma Wyrm Makar
Defeated Rennala, Queen of the Full Moon
Restored the power of a Great Rune
Defeated the Red Wolf of Radagon
Defeated Shardbearer Godrick
Defeated Margit, the Fell Omen
Arrived at Roundtable Hold