At last, the rules are published. They’re available from Iliada Game Studio as a pdf for £4
https://www.iliadagamestudio.com/product-page/the-incredible-events-of-the-century-and-the-attack-of-the-inner-planets
And from Wargame Vault, for £4 as a pdf
https://www.wargamevault.com/product/404445/The-Incredible-Events-of-the-Century-and-the-Attack-of-the-Inner-Planets
And from Amazon, £4 on kindle, or £9.50 in paperback
And a review from Miniature Wargames

They’re probably foreigners with ways different from our own. They may do some more… folk dancing.
theyre-probably-foreigners-with-ways-different-from-our-own.-they-may-do-some-more…-folk-dancing.Download
Scenarios
Do Martians fear the Rebel Yell
Martians against the Mahdi