RollerCoaster Tycoon 3: Platinum!

RollerCoaster Tycoon 3: Platinum!

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Melvin593 Jun 14, 2013 @ 2:27pm
"App already Running"
Whenever I try to play the game it doesnt start up. It asks me if the game wants to make changes- I say yes- and it does a weird like black screen (as if its trying to get the game started). Then it asks me AGAIN if the game wants to make changes to my computer. Then it gives a steam error "App already Running" error. Anyone else having this problem or know how to fix it? I have already uninstalled/reinstalled. Then I made it "compatible" with windows XP or whatever (in the preferences) because I am running Windows7.
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Showing 1-15 of 27 comments
Zloth Jun 14, 2013 @ 4:47pm 
Have you rebooted?
Melvin593 Jun 15, 2013 @ 1:40pm 
I hate you
Freakapotamus Jul 14, 2013 @ 4:38am 
I am having the same issue. Anyone find a solution?
TheSynisterOne Jul 14, 2013 @ 5:23am 
You may find that if you press ctrl, Alt and delete then select Task Manager - under processes there may be a process running under RCT3 or Atari - stop that task and then reload the game.
Freakapotamus Jul 14, 2013 @ 6:12am 
Unfortunately I dont have either of those in my task manager
Serapaxson[ABK] Jul 15, 2013 @ 10:12pm 
Mine does not work either :(
Koumori Jul 16, 2013 @ 6:27am 
I'm having the same issue and I cannot find how to fix it anywhere, lots of ideas out there, but none of them work
Mastercheng Jul 16, 2013 @ 6:59am 
same here, can i have a refund ?
Megs Sensei Jul 16, 2013 @ 7:11am 
Try restarting steam
Symc Jul 16, 2013 @ 9:38am 
does simply restarting your pc resolve this error and allow you to play the game?? need reply please
Delirious Anvil Jul 16, 2013 @ 9:45am 
I've also had issues running this game on Windows 8 64bits. Kept getting the same steam error message stating that the app was already running. I've managed to get the game running by stopping the Steam Client bootstrapper in the task manager. The bootstrapper will start again as soon as you start the game but it will run. I have to do this everytime I play. A little annoying, I know, but at least, it's playable. Hopefully this will help some of you.
Melvin593 Jul 17, 2013 @ 2:10am 
Mine works now. I went to the folder of RCT3 through the "my computer" and you right click the application that launches it. if the compatibility box is checked uncheck it. Then start it from there not from steam. it takes a long time to start up because its like old or whatever. but it worked for me,
noob Jul 17, 2013 @ 1:28pm 
Works for me too :D
ZombiePharmer Jul 17, 2013 @ 4:15pm 
I came to this post because I was having this problem. Saw the "Restart Steam" suggestion and did it. Now the game will actual run. What I don't understand is that I have actual restarted and shutdown my system and still received the error ,ut I close Steam in the system tray and restart it, and it works. Odd. Thanks for pushing me in this direction Megs Sensei.

Originally posted by Megs Sensei:
Try restarting steam
Rambor the Great Jul 26, 2013 @ 6:54am 
I got rid of compatibility mode and now when ever I run it it cuts to black then it says Rollercoaster Tycoon 3: Platinum! has stopped working. I have windows 8 and I have restarted steam several times, Any ideas?
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Date Posted: Jun 14, 2013 @ 2:27pm
Posts: 27