Dota is a series of strategy video games now developed by Valve. The series began in 2003 with the release of Defense of the Ancients, a fan-developed multiplayer online battle arena mod for the video game Warcraft III: Reign of Chaos and its expansion, The Frozen Throne.

Dota 1 is already gone and can via LAN or offline mode. I never tried Dota 1 since its official released. On the other hand, see the collections of the classic Dota 1 maps below from the oldest down to the last released maps. You can download any maps that you want and use it to play with your friends offline.

70+ Download DOTA 1 Maps

✅ Castle_Fight_v1.15b.w3x