Gigalomania is a 2D real time strategy game that is a clone of Mega-Lo-Mania. The gameplay consists of researching and developing new technology with which to conquer your enemies, from rocks and sticks to nuclear weapons and spaceships. You can advance through ten different ages, from the stone age to the future. There are 28 different maps to play through.
While it's not a strict and official Megalomania remake, it definitely has it's roots well established and it's recognizable as such. In fact it is possible to use the original graphics from Mega Lo Mania - you need the game in Amiga "hard disk" format, such as WHDLoad version.
The real interesting aspect is that the game author is also the porter of the AROS version - Give a round of applause to Mark Harman.
All required info is available on the author's website.
You can download the game here: AROS-Archives