Arcade machines, known for their classic and often proprietary designs, have varying approaches to player-created content and mods. Traditionally, arcade cabinets were closed systems, designed to run specific games without modifications. However, modern arcade machines and retro-inspired setups have opened doors for customization.

Some arcade machines, particularly those running on PC-based hardware or emulators, allow players to install mods or custom software. For example, multi-game arcade cabinets often let users add ROMs or tweak game settings. Community-driven projects like MAME (Multiple Arcade Machine Emulator) enable enthusiasts to modify and expand game libraries.

However, commercial arcade machines, especially those in public venues, typically restrict modifications due to licensing and security concerns. Some manufacturers release official update kits or expansion packs, but unauthorized mods can void warranties or violate terms of service.

For hobbyists, DIY arcade builds offer full creative freedom. Custom controllers, artwork, and software mods are popular ways to personalize arcade experiences. While not all arcade machines support mods natively, the growing retro-gaming community continues to push boundaries in player-created content.