Full list of all 57 Happy Wars achievements worth 1,500 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 41 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 16 achievements worth 500 Gamerscore.
Collect a total of 1000 Medals, regardless of type
Get 6 Hero's Medallion Medals
Get 100 Bronze Cross Medals
Remodel an item and add a buff to it 100 times
Get 30 Silver Cross Medals
Get 500 items
Get 50 Bronze Cross Medals
Get 150 items
Get 15 Silver Cross Medals
Get 1 victory in any game session
Get 10 Bronze Cross Medals
Get 10 Knight's Medallion Medals
Get 5 Knight's Medallion Medals
Get Knight's Medallion Medal
Get 3 Hero's Medallion Medals
Get a Hero's Medallion Medal
Get 5 Silver Cross Medals
Get 1 victory in Skirmish mode
Use Warrior, Cleric, and Mage 2 times each in a Quick Match or Co-op Mode
In Quick Match or Co-op mode, use all skills for Warrior, Cleric, and Mage.
Use a talk or order commands 100 times in a Quick Match or Co-op Mode
Reached rank 50
Launch a Team Skill and get a kill in a Quick Match or Co-op Mode
Play 100 non-tutorial games
Use a talk or order commands 4 times in a Quick Match or Co-op Mode
Reached rank 40
Use a talk or order commands 300 times in a Quick Match or Co-op Mode
Reached rank 20
Receive mention in Hero Pop-up in a Quick Match or Co-op Mode
Raise the level of an item to Level 15
Play Happy Cards
Level-up an item 100 times
Level-up an item 15 times
Get 90 items
Get 60 items
Level-up an item
Remodel an item and add a buff to it 15 times
Get 30 items
Get a Level 10 item
Modify an item and add a buff to it
Get a premium item
Knock 10 enemies off their mounts
Build 300 towers in Quick Match or Co-op Mode
Kill 100 enemies with an Ambush Attack in Quick Match.
Have a total of 500 other characters across any game modes join in Team Skills that you launch.
Resurrect the same character 7 times in a single game of Quick Match or Co-op Mode
Watch the credits
Play 5 full matches of Special Games.
Sell 100 items
Evolve a weapon
Die from falling off a cliff or drowning in a non-tutorial game.
Customize all the parts of a character
Play "Happy Cards Lite x10" 10 times
Kill 1000 enemies in Quick Match
Complete every Story Mission
Gain 100 victories in Quick Match
Gain 20 victories in Quick Match