So far we've only seen third-party download game in the Nintendo 3DS eShop, the decent but could-do-better Let's Golf! 3D. That offering is set to multiply significantly by year's end though, as Nintendo announces the 3DS download games on the way before 2012.
Sonic Mania! Chicken Wiggle! SmileBASIC! Much more!
Ironcast! Phantom Trigger! Rocket Fist! Kirby Discounts! More!
Slime-san! Retro City Rampage DX! Switch discounts! More!
Zen Pinball, Runner2, Art of Balance and more
Scratches that Ghouls 'n Ghosts itch perfectly