@Stan` Thanks for the explanation. (I'm not personally affected since I'm totally fine with just one installed version; I still wanted an answer. And further encourage a more user friendly approach.)

My Lobby won't show any other players and a "server unavailable" error will pop up in the chat, also The ToS & Privacy policy won't pop up, instead some random error codes will occur. I am playing from Linux Mint if that helps.

There is also the Profiler2 UI https://gitea.wildfiregames.com/0ad/0ad/wiki/Profiler2 Although I'm not sure what'd you expect to see, as identifying bottlenecks isn't exactly simple usually

Hey @Emma Sorry I missed your message, you can get in touch with me as well. I'm available on most platforms in order of preference IRC, XMPP, MATRIX, DISCORD, SIGNAL TELEGRAM WHATSAPP and FB Messenger. I just took a pic in your portfolios and that's some really nice stuff. You could help improving the quality of the current flora if environnement art is something you're interested in. Otherwise we need a new germanic wonder I'm sure @Genava55 could hook you up with some nice references. Regarding 3dmodelling and texturing I'll be guiding you through it. I would recommend learning how to get the SVN version and checking out the art documentation. See https://gitea.wildfiregames.com/0ad/0ad/wiki#for-artists Let me know if you need any help.  

I believe the reason was that it was expected that people would always play the latest versions. This is also why there is only one folder for Saves, screenshots and mods. The game is totally portable though, (it doesn't care where it's installed as long as you have rights to that folder). Until the installer is changed to allow multiple installs, you can just rename the folder where it is installed. If you want each version to have it own mods etc, you need to run the game with -writableRoot. cc @Itms