I upload some games 4 years ago and now I cant find them, I tried using old links of the game in scirra arcade but they dont work anymore, have they been deleted?
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As you can read in this blog article :
Help! Where are my games?
If you login and visit https://construct.net/en/free-online-games/published-games you'll see any games that have been ported to the new arcade. Update: May 2020 If your games are not there, the period for porting them over has now lapsed. You will need to upload them again to the new arcade.