Cave Story (Freeware)20 December 2004
The original release of Cave Story. Game Downloads
Cave Story WiiWare22 March 2010 (NA) / 10 December 2010 (EU)
Ported to the Wii with a new translation, upgraded double resolution visuals, new modes, multiple save slots, and remixed music. Plus you can mix and match new visuals and music with the originals. Sadly the WiiWare platform was shut down, so this can no longer be purchased.
Cave Story DSi29 November 2010 (NA) / 22 November 2011 (JP)
Cave Story ported to DSiWare with the game modes and translation from Cave Story+. Sadly the DSiWare platform was shut down, so this can no longer be purchased. Nintendo of Japan's Game Listing Cave Story DSi Official Site (Japanese) [archived]
Cave Story 3D8 November 2011 (NA) / 11 November 2011 (EU) / 24 November 2011 (AU) / 26 July 2012 (JP)
Cave Story with new 3D graphics, new or expanded areas, rebalancing, new item locations, new music remixes and a time attack mode. Japanese release exclusively contains crossover content from Crazy Climber, Ikki, and Dragon Slayer. Cave Story 3D Official Site [archived] Cave Story 3D Official Site (Japanese)
Cave Story (3DS eShop)4 October 2012 (NA) / 1 May 2014 (EU/AU) / 30 September 2015 (JP) / 23 November 2016 (KR)
Cave Story+ on the Nintendo 3DS eShop minus the double resolution graphics and extra soundtracks. Not to be confused with Cave Story 3D. Sadly the 3DS eShop service was shut down, so this can no longer be purchased.
Cave Story+ Switch Edition20 June 2017 (NA) / 20 July 2017 (EU) / 8 February 2018 (JP)
Cave Story+ on the Nintendo Switch. Features lighting effects, water effects, puppy stacking, animated facepics, a new famitracks soundtrack, a new challenge mode, and more. Available in both physical and digital releases. Nintendo's Game Listing