Riftbreaker has a much more “hands on” action approach rather than being an RTS but you might like it, it’s a good game.
Im also waiting for Diplomacy is not an option to leave early access, seems like a promising title although it’s kinda simple.
Would you say Age of Darkness is worth buying now or should I wait until it’s completed? It looked interesting but reviews are mixed when it comes to bugs, technical performance and content overall.