LZ let me explain it to you in detail.

In the beginning, Dota was created based on the editor in War3, which was WE. At that time, Blizzard did not mark the copyright ownership issue of the maps created by WE in the copyright agreement, which led to the dota map. Copyright belongs to Ice Frog.

As for the copyright you mentioned, it is only the character prop models, sound effects, etc. in the Dota map. These copyrights belong to Blizzard, and the copyright of the name Dota belongs to Ice Frog, so Ice When Valve created Dota 2, Wana could not use the same model as the model in War 3.

As for the LOL issue, it belongs to Riot and was acquired later. LOL does not have any copyright issues. It is just a game with gameplay similar to Dota. As for saying that some of its content plagiarizes Dota, this is true, but it does not involve legal issues. Just like if you register an XXX restaurant and someone else registers an AAA restaurant, you two can cook the same dishes, but there will be no copyright issues.

Finally, let’s talk about Heroes of the Storm. This was launched by Blizzard after realizing the popularity of MOBA games. It was launched because it was not able to cooperate well with Ice Frog. In fact, it’s not too late. The content and gimmicks of Heroes of the Storm are completely different from Dota, so it won’t be too late