#Grand theft auto iii pc youtube android

Thankfully, the code for GTA 3 on PS2 and Android includes debug symbols. This is sometimes quite easy and sometimes hard, but in any case it's a lot of code and you're bound to make mistakes.' 'So what we typically do is work with the output of the decompiler and massage it back into readable C++. 'To go back to C++ is by no means a simple 1:1 mapping, but over the last 10 or so years decompilers have appeared that help with this process. 'Machine code can be (more or less) mapped 1:1 to a human readable form called assembly language, but it's still very tedious to read. So the general task is to go from machine code back to C++. 'The compiled executables that are shipped are in machine code. 'GTA 3 and Vice City were originally written in C++,' aap explains. Here's how aap and co managed it, in layman's terms: There are almost certainly still bugs in the re3 code that aren't original, aap admits. There's a huge amount of code to work through, and mistakes are inevitable, especially if they don't result in any obvious wrong behaviour in the game. This is not an easy thing for professionals to do - let alone enthusiasts. The skill, time and energy required to reverse-engineer a video game should not be underestimated. 'I was still working on it alone at the time, but it seemed like the most promising route to an open source GTA.' 'I had no idea if this project would ever be finished,' aap explained. aap replaced the functions of the original game until everything was replaced by the spring of 2018. At some point in 2016, aap began to reverse engineer the GTA 3 code on a casual basis, getting to the point where the player could fly around the map.Īap then focused on reverse-engineering collision and physics code, injecting this into the actual game for testing. aap, though, was more interested in reverse-engineering the original code into source code. There have also been projects that recreated Grand Theft Auto 3 in engines such as Unity and Unreal. One such attempt, dubbed Open ReWrite, or OpenRW, saw some active development but now appears dormant. Over the years there have been multiple attempts at recreating GTA 3, the 2001 action-adventure game developed by DMA Design and published by Rockstar Games. 'We'd been injecting our code into the games for many years for modding but of course that's sort of tedious and you're still limited in what you can do.' 'Open source GTA has probably been a dream for many of us GTA fanatics,' project leader 'aap' tells Eurogamer. It's an exciting development for the video game reverse-engineering subculture that has so far avoided retribution from Rockstar and its parent company Take-Two. Re3 also includes a map of Liberty City in the pause menu - something missing from all original versions of GTA 3.

There are even improved effects from the PS2 versions. The video below showcases the work and the changes made possible.īugs have been fixed, a debug menu and camera are available, there's instant compatibility with current controllers, no loading screens between islands, and widescreen support with a properly scaled HUD, menu and field of view, among other improvements. Re3 (reverse-engineered GTA 3) and reVC (reverse-engineered Vice City) offer a raft of eye-catching improvements over the original games that are available to play officially today on PC. The code can be used by anyone to play both games on PC - with the hope others will take it and improve upon it further. It means fan-created source code for both games is now available on GitHub. Grand Theft Auto 3 and Vice City are both now fully reverse-engineered - a passion project from a small group of fans years in the making.