Step 1: Check if this game hasn't been posted to Sharenator yet (use search)
Step 2: Dowload the game (.swf file) to your computer
Step 3: Upload the .swf file to Sharenator
Step 4: Post it!
How do I download a flash game?
Here comes the tricky part. Dowloading a flash game is not always easy. There are two ways of doing this - one is easier and other requires some html knowledge (viewing the source code to find a link to .swf file).
The easier way
If you're a firefox user, there are plenty of addons created just for this. My favorite is Download Embedded. From the description:
"When the Download Embedded plugin detects an embedded object, a small red arrow will appear on the status bar at the bottom of your firefox window. Just click that and either download them all or pick which ones you want to download.".
To install Download Embedded, go to this link:
Once you have this addon installed, go to the page you want to dowload your flash game from. Click on red arrow in the bottom right corner of your firefox window. Look for .swf file. Click to download it.
Vuala! You've downloaded the flash game. You can now upload it to Sharenator.
If you have any questions, don't hesitate to ask in this thread.
If you know a good flash game but you don't want to add it yourself, you can request it to be uploaded in the following thread:
Let's bring the best games to Sharenator!