Sims 4 Play Button Greyed Out / Can't Play GameHere are several troubleshooting tips to try to get the to get the game to work:
1. Delete both game cache and Origin Cache Files
Delete Game Cache - What and How-To
http://www.carls-sims-4-guide.com/forum/index.php?topic=29288.msg401662#msg401662Delete Origin Cache - What and How-To
http://www.carls-sims-4-guide.com/forum/index.php?topic=29289.msg401663#msg4016632. Log out of Origin. *If exiting Origin isn't working, open Task manager (Ctrl-Shift-Esc) search for a file called ts4.exe. Click on it and select end process.
3. Deactivate Origin in Game - Open Origin, Go to the Origin Menu. Click on Origin > Application Settings > Origin In Game and deselect to disable Origin In Game.
4. Try resetting your Sims 4 folder as explained in the post linked below:
http://www.carls-sims-4-guide.com/forum/index.php?topic=29292.msg401669#msg4016695. Try playing the game in "Offline" mode -- In the Origin Client, go to the Origin Menu and select Go Offline.
6. Start the game in Windowed mode by -- In the Origin Client, go to the My Games Tab, and right click on the Sims 4 Cover and select Game Properties - In the Command Line Arguments, add the following text: -w and click Okay. If that doesn't work try: -w und
7. Run Ccleaner and it's registry cleaner - (Standard Edition is Free)
-- This helps clean up temporary files, internet cache files and other files that are left behind that are no longer being used.
https://www.piriform.com/ccleaner/download -- PC
https://www.piriform.com/ccleaner-mac -- Mac
How to use CCleaner to fix PC issues
http://www.wikihow.com/Use-CCleaner8. Restart computer if you haven't in awhile. This helps to refresh the computer's memory.
---- Open Origin and log in to see if that has helped Sims be playable. If it's not, try repairing the game.
9. Repair Game:
In Origin > Games Library, right-click on Sims 4 and select Repair. - It does not make any changes to the saved game files. Meaning that your saved games are safe, they won't be deleted. If you'd like you can copy the Sims 4 folder to the desktop or a USB key.
*See this post for more details on Repairing the Game.
http://www.carls-sims-4-guide.com/forum/index.php/topic,22091.msg392674.html#msg392674
More helpful tips can be found in the link below.Re: Sims 4 now greyed out in Origin!
http://www.carls-sims-4-guide.com/forum/index.php?topic=21147.msg384515#msg384515Installation, Updating and Startup Issues
http://answers.ea.com/t5/The-Sims-4/FAQ-Installation-Updating-and-Startup-Issues/td-p/4276949----
Sims 4 - Game won’t start
http://sims4.crinrict.com/en/2014/09/game-wont-start/----
Play button won’t unlock
http://sims4.crinrict.com/en/2014/09/play-button-wont-unlock/The Sims 4 - Mac Help Threads, Guides and Troubleshooting
http://answers.ea.com/t5/The-Sims-4/MAC-READ-FIRST-Links-to-Mac-Help-Threads-Guides-and/m-p/4612394Note: This post has been locked as it's for informational purposes.