Sanxion is a horizontally scrolling shooter developed by Stavros Fasoulas for the Commodore 64 and published in 1986 by Thalamus Ltd.

[1] While the scrolling is automatic for the most part, the player can control the speed of the engines (there is even a bonus timer that counts down, as an incentive for those who want to "blast through"),[2] and the pitch of the noise alters accordingly, while sounding vaguely like a didgeridoo.

A port was planned by Thalamus Interactive in 2001 for the Game Boy Advance, with updated graphics and new features, like two-player mode and end-of-level bosses.

[6] Sanxion was the first Thalamus game to use the Cyberload loader by John Twiddy, famous for containing the string "hackers screw off and die".

[10] The menu plays a SID version of Sergei Prokofiev's "Dance of the Knights" piece from the ballet Romeo and Juliet.

[11] Commodore User's Mike Pattenden considered the game to be a clone of Uridium which was well executed but not really worth purchasing as an alternative to the cheaper rival Warhawk.

[13] In a retrospective review Kristan Reed of Eurogamer gave the game a 7/10 rating: "Although Sanxion doesn't stand up nearly as well as Uridium does these days, it was still a real highlight of the C64's growing love-affair with shooters.