Heroes 5 beta version.

Guys:). If you search the portal a little, you can find this topic – "Information about the beta testing". It describes in detail how to get it, what system requirements are needed, and where to get the key.

This is all about the official open beta, which was announced by Ubisoft and is freely available for download.

No demo version of Heroes 5 has been released yet, and it is unlikely to appear anytime soon, only before its release. But you can read the information in the topic I described above to play the beta and test it.

However, regarding the demo version, here's what Nival said in an interview:

Will there be a single-player demo before the game’s release?

Yes, definitely. It is still too early to talk about when exactly it will appear, but there will definitely be an opportunity to try out the single-player mode before the game is released.