I tried to code a Warcraft 2 clone with the bugs and balance issues worked out back in the late 90s but never got far enough with it. It still intrigues me from time to time to have this kind of project again now that we have so many programming community tools like GitHub to collaborate with
https://en.wikipedia.org/wiki/Command_&_Conquer:_Red_Alert
Of course I'm not still playing it now, but from the wiki article it looks possible.
I am a fan of things that are "easy to learn and hard to master". With Warcraft 2, it was like realtime chess. There were two races, the graphics and sounds were satisfyingly simple. It was about the actual strategy and not just crazy "oh look at this" glitzy features. Warcraft 3 did away with the strategy in favor of 3d glitz. Starcraft seemed too complex and I didn't like the diagonal movement instead of the vertical-horizontal. I liked knowing where the units will pop out of the building, and other stuff like that. It was really about strategy.
Keep in mind I also liked chess.
Another game I liked a lot was MYTH - TFL. I wish I could still play it. Also because of the realtime strategy!
" UO:Renaissance is an Ultima Online free-shard, based on Renaissance era mechanics, without the influences of Trammel.
Designed and operated by passionate PvM and PvP experienced staff, that do not play here, this recreation aims to perfect what we all loved about Ultima Online before its decline. A highly immersive game with seemingly limitless possibilities coupled with risk vs reward, this world is what the players make of it. Offering an extensive crafting system with the best free shard economy, PvP mechanics with more templates than you'll have the time for and PvM with more challenge and data than ever before. This is the shard to play on if you want to truly enjoy Ultima Online."The game is definitely "flat", although you can go back to WC1 and see how things could be worse. :) If you're speaking about graphics, I also like 2D games for some reason.
And of course there is appeal in the game environment/story too and not just gameplay. I tend to prefer fantasy over sci-fi, so that gives WC2 some extra appeal vs SC. WC2 is unique in that it is both fantasy and 2D, unlike SC and WC3.