Arcade machines traditionally operated within closed systems, designed primarily for fixed gameplay experiences rather than user-generated content. Unlike modern PCs or consoles, classic arcade cabinets used proprietary hardware and ROM chips that prevented direct modifications by players. However, some systems like Neo Geo allowed limited save data via memory cards, while certain puzzle games permitted players to create custom level layouts temporarily during gameplay sessions.

Modern retro-style arcades sometimes incorporate newer hardware that supports expanded features, including user-generated level sharing through online connectivity. Additionally, modified arcade units with emulation capabilities can now run fan-made mods or homebrew games, bridging the gap between classic arcade purity and contemporary content creation trends. The evolution continues as developers experiment with arcade platforms that embrace player creativity while maintaining the authentic coin-op experience.