If you're a bit of an RTS nut like me, Rusted Warfare is a really fantastic choice. It's been updated again with some fun new features and content.
To keep you busy, this new release adds in two completely new maps with Valley Arena and Kingdoms. Both of these maps support up to 10 players, so you can have some huge battles!
They've also adjusted the multiplayer, so that if things really aren't going your way you can now surrender based on votes across your team. Another new multiplayer feature, is a ping system, something a lot of games have been adding and it's really slick. You can place markers on the map for things like "attack here" and "build here" so it takes away some of pain if your team don't speak your language.
AI pathfinding has been improved too, so lots of units in a group will take a wider gap around obstacles and follow the actual path better overall. The AI no longer has a delay to start building on a fresh game, smarter team starting locations in skirmish battles, no more blurring on the map at certain zoom levels and so on.
Since the game has some good modding support, there's also plenty of improvements to that this release too with a bunch of new options in.
I've put quite a number of hours into this, I can't give it enough praise. It scratches the itch I needed for a traditional base-building RTS and it works on really low-end notebooks too.
Find it now on Steam. It won't hurt your wallet either at £3.99/$4.99/€4.99.