Orange Box , lost box with Product codes ,can I still install ??
what do i do i lost my code
More aboutorange lost product codes install
If you still have a receipt, contact Steam regarding your problem.
yep steam is your answer. the code is attached to your account. so you can still get a copy of it.. just get in touch with support if they find it has been installed on your account previously they will give you a copy of your old key via email.