OpenRA will finally be letting you save your single-player games in the coming release, along with more helpful features it's looking good.
As a reminder: OpenRA is a free and open source game engine, developed to allow you to play Command & Conquer, Red Alert and Dune 2000 with Tiberian Sun coming eventually. You don't need to buy them either, since EA made them all free years ago. It's a very impressive game engine and already works beautifully in single-player and online but it doesn't have all the missions implemented from the campaigns just yet.
The next release they've written about, will be adding in the "most wanted missing feature" allowing you to save both skirmish games and missions in the campaigns. This is fantastic as some missions can take quite a while to do, having to blast through them in one go is not great.
Spectator UI is also seeing improvements, the side-bar for Command & Conquer went through a complete overhaul to look better and they improved building placement previews too:
On top of all that map previews were polished up to look closer to how they actually are in-game. One feature I found especially helpful is the new ability to set the select the approach vector for things like paratroopers. This little bit of fine-tuning makes me really appreciate how OpenRA continues to make such classic games feel more modern.
Further improvements include: a removal of the Mono requirement for the Linux AppImage; a new time limit lobby option for multiplayer and skirmish games; fixes for queued unit orders, aircraft, and harvesters; new tweaks and traits for modders along with more bug and performance improvements.
Seems like this is going to be one of the best OpenRA releases yet, exciting!