I’m pretty sure this is the right board for this… but anyways.
NukeZone is a browser-based strategy game. Free to play, and NO DOWNLOADS! It plays directly from your browser. You can build units, attack people and such… choose what to research and build…
I find it great fun! If you want to try it, the website is www.nukezone.nu.
(And no, I am not advertising or affiliated with NukeZone in any other way than being a player of the game.)