Hello everybody. Is there any chance that I could play the
cultures 1 as the indians or eskimos or other tribe?
Thank you for answers.

I don't think so. These tribes don't have as much buildings like the vikings. Also it would be ahistorical. But maybe it's modable.

Does some mode for cultures 1 exist?

I googled it and found out that there are really mods existing. I didn't knew that before. Theres a Mod from CulturesNation which adds the Francian Tribe: http://culturesnation.pl/forum/viewthread.php?thread_id=3454&pid=28380#post_28380

Also there's a german translation existing: https://www.culturesforum.de/forum/viewtopic.php?t=494


But I don't know for which Cultures Version it is...