Little Big Adventure is a 1994 action-adventure game developed by Adeline Software International. It was published in Europe by Electronic Arts, and by Activision in North America, Asia and Oceania under the name Relentless: Twinsen's Adventure. Over 500,000 copies were sold by 1999. The game was initially released on CD-ROM and some time later on floppy disks; the CD-ROM version features full motion video, music and speech whereas the floppy disk version has MIDI music files and still images to replace the videos. The game was later ported to the PC-98 and FM Towns and was released in Japan in 1995. It was released for the PlayStation in Japan and Europe in 1996 and 1997 respectively, and to Android and iOS devices in 2014.