For some reason the the Glest 3D Models are being sold [1], which is a bit strange considering the technical age of the models. [2]
[1] https://www.turbosquid.com/Search/Index.cfm?keyword=Glest&me...
The early 3D RTS years of Dark Reign, Earth 2015, eventually Warcraft 3 really lit a fire under peoples asses to try to make their own. It was magic to see, but the fire has unanimously died down with the genre.
What happened to Mega Glest?
It's linked from the main page: https://megaglest.org/
Looks like it still has some activity?
Most of them are fairly low budget, though there are a few fancier ones (Stormgate, ZeroSpace, Battle Aces, Tempest Rising, to name a few).
A ridiculous amount of these RTS games will not make any impact to the genre, of the few which are released. I surmise that a company like Petroglyph knows that all too well by now and they have a proven track record of shipping things. Grey Goo may have been boring as hell but the work they all put into it, I’ll stomach it and play it. Great music by Frank Klepacki as always. And titles like Stormgate which I believe have ex-Blizzard people attached often have a diva like quality that entombs them. Artillery (the game that Day[9] was attached to for example) was hyped, overhyped, and then gone. And many other of this sort. I forget the name of the Myth series remake, but that made it all the way to beta before being shuttered.
It’s always a great year for RTS games, except it never is. We get the occasional release of some Company of Heroes shlock sequel, maybe a Cossacks or a Sudden Strike or whatever, but the last big RTS title was in 2010: Starcraft 2. And starcraft 2 is by communal investment dead as most of the serious players migrated back to SC1.
The little puff of wind we got from Planetary Annihilation and Ashes of the Singularity made zero dent on the genre. Very few people bothered to play these games. Most action you’ll see today is on SC1 and AoE. Remakes, demakes and remixes of the old days.
Here are the glowing reviews for Homeworld 3 which just came out: https://store.steampowered.com/app/1840080/Homeworld_3/
As a genre, RTS is dead.
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Had to edit a major part of my comment, since I was pointing to the wrong branch: The last stable release 3.13 is 7 years old, but there is some activity going on, as can be seen here:
Still, less dead.