Full list of all 48 Sonic Forces achievements worth 1,085 gamerscore. It takes around 25-30 hours to unlock all of the achievements in the base game.
The base game contains 45 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 85 Gamerscore.
Collected a total of 100,000 Rings.(All Rings held at the end of the stage will be counted.)
Collected all Wispons.
Collected all parts.
Completed all Challenge Missions.
Achieved highest honors with all races.
Collected a total of 50,000 Rings.(All Rings held at the end of the stage will be counted.)
Collected 500 parts.
Collected all Silver Moon Rings.
Collected all Number Rings.
Cleared all EX Stages.
Collected all Red Star Rings.
Defeated 10,000 enemies.
Made it into the rankings.
Collected a total of 10,000 Rings.(All Rings held at the end of the stage will be counted.)
Collected 30 Wispons.
Collected Silver Moon Rings three times.
Collected 3 Number Rings.
Completed 10 Daily Missions.
Cleared all Secret Stages.
Defeated 5,000 enemies.
Completed 10 SOS Missions.
Created your second Avatar.
Restored peace to the world.
Defeated Infinite.
Achieved a soldier's highest honor.
Turned the tide of the conflict.
Drove off Infinite again.
Liberated a world.
Collected 10 Wispons.
Completed 5 SOS Missions.
Completed 5 Daily Missions.
Equipped a part in every slot.
Collected 100 parts.
Used the Closet.
Defeated 1,000 enemies.
Utilized the Rental Avatar function.
Completed 3 Daily Missions.
Completed your first SOS Mission.
Drove off Eggman.
Collected 30 parts.
Drove off Infinite.
Changed Wispons for the first time.
Defeated Zavok.
Created an Avatar.
Cleared Stage 1.
Collected all Silver Moon Rings in Episode Shadow.
Collected all Number Rings in Episode Shadow.
Collected all Red Star Rings in Episode Shadow.