1983 SEGA
Platforms: Arcade, Atari 2600, Atari 8-bit and Commodore Vic 20 (Probably C64 too)
Ixion is an intriguing arcade title that was due for release from SEGA back in 1983, and was based on Zaxxon’s hardware, even though you may not think it looking at the game. The game was a top-down 2D grid based action title, where you must collect all the letters to spell out the word IXION, whilst shooting enemies and avoiding being shot yourself.

According to Segaretro.org , it is suggested that Ixion likely failed its location test, considering that it was largely finished. Thankfully the game has been dumped and is actually fully playable in MAME.