Here is the full list of all 20 The Gunstringer: Dead Man Running (Windows) achievements worth 200 gamerscore.
Collect 2500 Gold Coins in one session
Collect 8 Treasure Chests in one session
Collect 10 Power-ups in one session
Run through 60 turns in one session
Take down 35 Destructible Targets in one session
Run 25000 meters in one session
Make your 50th Purchase
Complete 25 challenges
Buy a new costume set.
Unlock all Badges in the three worlds of Story.
Beat World 3 in Story Mode
Beat World 2 in Story Mode
Beat World 1 in Story Mode
Unlock all Powerups
Complete your first purchase
Have 10,000 coins at any one time.
Invite a friend
Send 25 challenges
Complete tutorial and level 1 in Story Mode.
Fully upgrade all Powerups