A batch of recently showcased cross-game mods has begun bringing control schemes and gameplay mechanics from one title into another. One demo runs Minecraft within Elden Ring. These projects attempt to移植 weapons, movement mechanics, enemies, and inventory systems, going beyond simple character model replacements or map additions.
Other demos include projects that integrate Escape from Tarkov's mechanics and firearms into The Elder Scrolls V: Skyrim, as well as ones that let players use Minecraft-style movement in Grand Theft Auto V. Also on display are mashups combining Call of Duty: World at War's Zombies mode with Mario Kart, and Halo-style large-scale team battles set within Call of Duty: Modern Warfare 2 maps.
These experiments are tied to advances in reverse engineering and decompilation tools. Once creators understand a game's code and how it operates, they can more easily extract its features and connect them to another game. The resources available for each project vary, potentially involving open-source code, decompilation results, or existing modding tools.
The open-source tool Universal Modder assists with processes such as engine identification, program file inspection, mod loader detection, and modification testing. Current demonstrations involve Terraria and Age of Empires II. However, these cross-game demos employ various implementation methods, so it cannot be assumed that they all utilize this specific tool.
