Cheat Engine is an open source tool designed to help you with modifying single player games running under window so you can make them harder or easier depending on your preference(e.g: Find that 100hp is too easy, try playing a game with a max of 1 HP), but also contains other usefull tools to help debugging games and even normal applications.
It comes with a memory scanner to quickly scan for variables used within a game and allow you to change them, but it also comes with a debugger, disassembler, assembler, speedhack, trainer maker, direct 3D manipulation tools, system inspection tools and more.
For new users it is recommended to go through the tutorial(The one that comes with Cheat Engine, you can find it in your programs list after installing) and at least reach step 5 for basic understanding of the usage of Cheat Engine
September 13 2012:forcedinjection plugin
Some people have been asking me why they can't use the speedhack in Chrome. That is because the chrome child process has no disk access (Limited user and untrusted mandatory level). It's pretty easy to make it usable again by changing a flag in the config, or just getting a different browser.
But for those that couldn't get it to work, or those that wish to know more about plugins, I've made a plugin for Cheat Engine showing off how to make a hybrid plugin that uses both the lua framework and the exposed plugin api to rewire the injectDLL routine (more specifically, the functions it uses) so that it can force load a dll into the target process without the process having disk access.
http://www.cheatengine.org/aboutce.php
http://cheatengine.org/download/d1/CheatEngine62.exe
http://members.upc.nl/cheatengine/CheatEngine61.exe
It comes with a memory scanner to quickly scan for variables used within a game and allow you to change them, but it also comes with a debugger, disassembler, assembler, speedhack, trainer maker, direct 3D manipulation tools, system inspection tools and more.
For new users it is recommended to go through the tutorial(The one that comes with Cheat Engine, you can find it in your programs list after installing) and at least reach step 5 for basic understanding of the usage of Cheat Engine
September 13 2012:forcedinjection plugin
Some people have been asking me why they can't use the speedhack in Chrome. That is because the chrome child process has no disk access (Limited user and untrusted mandatory level). It's pretty easy to make it usable again by changing a flag in the config, or just getting a different browser.
But for those that couldn't get it to work, or those that wish to know more about plugins, I've made a plugin for Cheat Engine showing off how to make a hybrid plugin that uses both the lua framework and the exposed plugin api to rewire the injectDLL routine (more specifically, the functions it uses) so that it can force load a dll into the target process without the process having disk access.
http://www.cheatengine.org/aboutce.php
http://cheatengine.org/download/d1/CheatEngine62.exe
http://members.upc.nl/cheatengine/CheatEngine61.exe
