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.
Super Paper Mario! Frankenstein! 2 Mega Man games! Discounts galore! More!
Ace Attorney! Jotun! 140! Final Fight trilogy! Much more!
Dragon Quest VII! Futuridium on New 3DS! Gear Gauntlet! More!
Armikrog! Ace Attorney Demo! Legend of Mystical Ninja! Much more!
Metroid Prime: Federation Force! Axiom Verge! Tetraminos! More!
SEVERED! Noitu Love: Devolution! Ace Attorney DLC! Polara! More!
Alien on the Run! Stickman Athletics! Pinball discounts galore! More!
PONCHO, Pokémon and lots of discounts!
Along with Pikmin 3 and Mario Party 10
The ultimate splatfest