Fusion is a scrolling multidirectional shooter developed by Bullfrog Productions and published by Electronic Arts in 1988 for the Atari ST and Amiga.

[1][2] As with Druid II and the later Populous, artist Glenn Corpes created most of the graphics and animation for Fusion, while Molyneux handled the majority of its programming and design.

[1] Matt Fox, author of The Video Games Guide, summarized Fusion as a "run-of-the-mill shoot 'em up [that] caused few ripples on release".

[6] According to Corpes, Fusion was not a commercial success and, together with Druid II, "only brought in a fraction of the money needed to pay the wage bill.

"[1] A UK magazine gave the ST version of Fusion a score of 9 out of 10, saying that despite being "yet another vertically scrolling shoot-'em-up" it has "sufficient variation".