(Update: 6/18/19: As brought to our attention in the comments below, this method no longer works.)
RuneScape Idle Adventures was the product of a partnership between Jagex and Hyper Hippo. It launched into early access on Steam and was very quickly abandoned by developer Hyper Hippo and never made it out of early access. Rather than cut ties to its online server, an arguably simple task for a game that arguably shouldn’t need to be connecting to a server, Hyper Hippo decided that the best option would just be to cut off access to the game entirely.
Thankfully the internet is full of magic wizards who can macgyver a functioning game in three keystrokes. Reddit user awsjay discovered nine months ago that you can get RuneScape Idle Adventures (almost) fully functioning with literally one character change in the game’s code.
Download the game (If not already active on your Steam account, you should be able to force the install through SteamDB)Get yourself a hex editor program. (I used this one because it’s simple looking)Go to the line highlighted below. The third number from the right will be 3A, change this value to 39 (as screenshotted)Save your change.Launch the game.
When I say the game is “mostly functional,” I’m referring to the obvious limitations being you won’t be able to buy anything from the store because the servers aren’t there. Otherwise the game is fully functional as far as they were able to develop it.
To prove this method actually works, I will be leaving my game broadcasting for the next day or so. You can see it active here.
(Source: Reddit)
MMO Fallout 