Author: AI Research & Development Date: October 26, 2023 Version: 1.0 Abstract RPG Maker MV (RMMV) is a popular game engine that utilizes HTML5, CSS, and JavaScript, allowing developers to deploy games to multiple platforms. While the engine includes a native debug window (F8), its functionality is limited to console logging and basic variable inspection. This paper details the development of a custom graphical cheat menu overlay. The objectives include modifying runtime game parameters (gold, stats, items, invincibility), understanding the engine’s event architecture, and analyzing the security implications of client-side JavaScript manipulation. The results demonstrate that due to the engine’s unencrypted exposed core scripts, implementing a persistent cheat menu is trivial for anyone with moderate JavaScript proficiency. 1. Introduction RPG Maker MV differs from its predecessors (XP, VX Ace) by relying on JavaScript (Node.js-like environment) rather than Ruby. The core game logic resides in js/rpg_core.js , js/rpg_objects.js , and js/rpg_windows.js . Because these scripts are executed on the client side, end-users have full access to the game’s memory and functions via browser developer tools.
var invincible = false; document.getElementById('invincibleToggle').onclick = function() invincible = !invincible; Game_Actor.prototype.executeDamage = function(value) if (invincible) return 0; return value; ; ; ; Using the Scene_Map update loop to listen for key combinations. rpg maker mv cheat menu
document.getElementById('addGoldBtn').onclick = function() $gameParty.gainGold(10000); ; Author: AI Research & Development Date: October 26,
var _Scene_Map_update = Scene_Map.prototype.update; Scene_Map.prototype.update = function() _Scene_Map_update.call(this); if (Input.isPressed('control') && Input.isTriggered('key')) var overlay = document.getElementById('omniDebugOverlay'); if (overlay.style.display === 'none') overlay.style.display = 'block'; else overlay.style.display = 'none'; ; function maxAllStats() $gameParty.members().forEach(function(actor) for (var i = 2; i <= 7; i++) // 2=ATK,3=DEF,4=AGI... actor.addParam(i, 999); actor.learnSkill(actor.skills().map(s => s.id)); // Learn all possible skills ); Introduction RPG Maker MV differs from its predecessors
document.getElementById('healBtn').onclick = function() for (var i = 0; i < $gameParty.members().length; i++) var actor = $gameParty.members()[i]; actor.setHp(actor.mhp); actor.setMp(actor.mmp); ;