The ones who say 'Released' are in excellent condition to use. Don't be afraid to use them.
Now how to install any mod
Is very simple and will take 5 minutes at top. So to do this go to Greenheart Games Forums[forum.greenheartgames.com] and choose a mod, for this example we will choose the Cheat Mod[forum.greenheartgames.com], developed by kristof1104.
After you doing the first set, activating the beta program you need to:
Download the file from Greenheart Games Forums.
Go to /steamapps/common/Game Dev Tycoon/mods
Paste the CheatMod folder in the Mods folder
Once this is done you need to run Game Dev Tycoon, and press 'ESC', go to Mods, press here it says CheatMod By Kristof1104 and restart your game.
A very important note, if some for some reason the box stays red please report it to the developer.
After your restart your game you will have full access to the cheats menu.
I want to thank you all for reading my guide, if you have any question comment below, enjoy the great mods that our community is doing.