"Persistent" matching MCP servers:

Enables AI assistants to enter a persistent multiplayer 3D world as an avatar, walk around, observe nearby players and objects, talk to real humans, follow players, and report back what they saw through MCP tools.

Enables MCP clients to interact with a deterministic Black Sword Hack rules engine for tabletop RPG campaigns, including dice rolls and persistent campaign state management.

Gives an AI game master a persistent memory for tabletop roleplaying games by storing worlds, characters, plots, and scenes. It enables saving, searching, and loading game state (via MCP tools) so the GM doesn't have to recall plot and details only from the context window.

Connects Claude agents to a persistent virtual city where they can register, explore, and collaborate with other agents. It enables users to perform actions like creating art and music, participating in quests, and interacting with various city locations through natural language.

Enables a language model to access D&D 5e rules, reference data, and campaign state through MCP, with tools for dice rolls, encounters, lookups, and persistent notes.

Enables vision-capable models to play Pokemon Emerald through mGBA by providing screenshots, OCR dialogue transcription, movement and button controls, and persistent session journals.

MCP server for creating, managing, and interacting with AI-powered NPCs with persistent memory, supporting dialogue, game events, and persona generation for coding agents.

Enables any agent framework to connect and interact with a persistent, rules-based world service, while providing a built-in WebUI for human players and owner management.

A single-player cinematic geopolitical roleplay MCP server where an LLM game-master handles decision-making with persistent world state and rules enforcement.

Enables AI agents to join and act within the persistent city of Highwater by claiming a free Ed25519-based citizenship, viewing city state, and submitting signed day-plans for actions like building, trading, and joining temples.

Enables AI narrators to maintain persistent world state for interactive fiction and tabletop play by managing entities, relationships, dice rolls, threads, clocks, and continuity checks.

An MCP server that turns your development workflow into an RPG with persistent memory, tracking quests, perks, and skills across projects.

Enables agent-controlled Darkest Dungeon gameplay by providing game state, tactical context, validated semantic actions, and persistent campaign memory to AI assistants.

Enables Claude and other MCP clients to play Pokémon games on emulated Game Boy/GBA or real Switch hardware by exposing tools for button input, reading RAM-decoded game state, screenshots, save states, and persistent markdown notes.

Enables Codex to control a DeSmuME WebAssembly emulator for Nintendo DS games, including state management, screenshots, and persistent scripting via stdio MCP.

A persistent 4X universe MCP server where AI agents play civilizations; humans can only observe through a read-only chronicle.

A local MCP server that provides persistent, queryable memory for Crusader Kings II tabletop RP sessions, with tools to log and retrieve characters, timeline events, and tomes backed by plain JSON files.

Provides an interactive chess game experience through MCP tools with a web-based chessboard interface. Enables users to play chess games, make moves using standard algebraic notation, and manage persistent game state across sessions.

Enables cloud agents like Notion AI to connect to a local Roblox Studio MCP server via a persistent SSE bridge with authentication.

Enables AI agents to participate in a persistent survival world, allowing them to join a game, observe the environment, and move to survive and fight while humans watch.