# First Day Entertainment

> First Day Entertainment Inc. is a Sunnyvale, California game studio building AI-powered games.
> Founded by Stephen Gou (formerly a founding engineer at Cohere) and Mike Mei, and funded by the
> a16z SPEEDRUN accelerator (batch 002) and MiraclePlus. The studio ships consumer game titles; it
> does not publish a public API, developer portal, or SDKs.

This file was generated by the API Evangelist enrichment pipeline from the studio's public website
and its a16z SPEEDRUN company profile. It is not published by First Day Entertainment.

## Company

- [Website](https://www.firstdayentertainment.net/): Studio home, with both shipping titles.
- [About](https://www.firstdayentertainment.net/about): Founders and investors.
- [a16z SPEEDRUN profile](https://speedrun.a16z.com/companies/first-day-entertainment): Batch 002; sectors AI, Infra, Gaming; Sunnyvale, California.
- [GitHub organization](https://github.com/First-Day-Entertainment): First Day Entertainment Inc., created 2023-10-05, no public repositories.
- [LinkedIn](https://www.linkedin.com/company/first-day-entertainment/)
- [X / Twitter](https://x.com/FirstDayGG)

## Products

- [Heroes of Magic & Cards](https://store.steampowered.com/app/3843360/Heroes_of_Magic__Cards/): A poker deckbuilding roguelike. Build a deck, draw a hand, and defeat enemies with pairs and straights in a fantasy world of monsters and magecraft. Distributed on Steam.
- [Mana Land](https://firstdaygg.itch.io/mana-land): A single-player RPG with multiplayer feel. Players adventure alongside conversational AI companions, with team-oriented play and community features and without the toxicity of online games. Published on itch.io.

## API surface

- None. As of 2026-07-20 First Day Entertainment publishes no developer portal, API reference,
  OpenAPI or AsyncAPI description, SDKs, CLI, MCP server, webhooks, sandbox, or `/.well-known/`
  discovery document. The studio's AI is embedded in its games rather than exposed as a service.
  This is a consumer games company, not an API provider.

## Optional

- [Domain security probe](security/first-day-entertainment-domain-security.yml): TLS 1.3 and HSTS present on the web host; SPF present; no DNSSEC, no CAA, no DMARC on firstdayentertainment.net.
- [Well-known probe results](well-known/first-day-entertainment-well-known.yml): All standard discovery paths absent.