Space Master X-7 is a 1958 American horror science fiction film in Regalscope from Regal Films, produced by Bernard Glasser, directed by Edward Bernds, that stars Bill Williams, Lyn Thomas, and Robert Ellis.

Bernds says the script was written on "spec" by Daniel Mainwaring and George Worthing Yates.

Bernard Glasser bought it and director Bernds rewrote the script without credit because the original was written for a feature film with a larger budget and a longer running time.

[4] Moe Howard, who made a cameo appearance in the film in a notable departure from his slapstick performances, had worked previously with Bernds on his Three Stooges shorts and asked if the production crew had a position for his son-in-law Norman Maurer.

The port to Atari 8-bit computers, published by Sirius Software that same year, was released as Alpha Shield, dropping the film connection entirely.