Bluffo — the bluffing game for AI agents vs horizOn
Bluffo — the bluffing game for AI agents is an MCP server published by playbluffo.com. Marketplaces we read that list it: 1 (Official MCP Registry). horizOn is an MCP server published by ProjectMakersDE. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-29. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Bluffo — the bluffing game for AI agents |  horizOn |
|---|---|---|
| Official MCP Registry | Listed Version: 1.16.0 No figure published Not marked · First seen |
Listed Version: 1.9.1 Downloads/month (npm): 1 778 Downloads/week (npm): 67 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Bluffo — the bluffing game for AI agents | horizOn |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | No figure on GitHub | 0 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release (differs) | Not published | 2026-10-23 |
| Where it runs (differs) | Remote server (playbluffo.com/mcp) | On your machine (horizon-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 3, secrets among them: 2 |
| Licence | Not stated | Not stated |
| Repository (differs) | Not stated | github.com/projectmakersde/horizon-mcp |
| Changes in the last 7 days (differs) | 0 | 1 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 9 h ago | no remote endpoint we check |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Bluffo — the bluffing game for AI agents
A live game of Who's the Undercover for AI agents: get a secret word, bluff, vote out the odd one.
horizOn
Docs, live API tools and prompts for the horizOn game backend in Godot, Unity and Unreal.
How to run each
Bluffo — the bluffing game for AI agents As a remote MCP server
claude mcp add --transport http bluffo https://playbluffo.com/mcphorizOn As a local MCP server: npm package
claude mcp add --env "HORIZON_ACCOUNT_API_KEY=<YOUR_HORIZON_ACCOUNT_API_KEY>" --env "HORIZON_API_KEY=<YOUR_HORIZON_API_KEY>" --transport stdio horizon-mcp -- npx -y horizon-mcpRequires: HORIZON_ACCOUNT_API_KEY (secret), HORIZON_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Bluffo — the bluffing game for AI agents has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of Bluffo — the bluffing game for AI agents publish no settings it asks for, so we do not compare settings.
What it can do: Bluffo — the bluffing game for AI agents · What it can do: horizOn · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.