OpenTD
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Build a tower defense game in your browser

Design maps, share a play link, and let anyone defend — no install required.

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How it works

  1. Design paths, pads, towers, and waves in the editor — guests welcome.
  2. Sign up with a public username (email stays private) to save and publish.
  3. Share a play link, list in the gallery, or export OpenTD JSON.
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