is false marketing illegal and can i get a refund with that reason from steam even after 100hrs of playing?
You might be able to with games that are different to how they are described; I know some countries like Germany and Australia legally require Steam to provide refunds for falsely advertised games regardless of playtime. Check your country's laws.
For example -
https://www.accc.gov.au/media-relea...misleading-consumer-guarantee-representations
And this is also helpful:
An advanced guide to the Steam refund policy: how the rules work and what you need to know about refunding games.
www.pcgamer.com
Promising something will be in a product you're selling to lure customers in, and then not delivering on that promise, is absolutely unacceptable and should be punished. So a refund is reasonable in that circumstance, IMO.
Don't jump the gun though. Taleworlds might still be planning to include the feature, and just aren't sharing that information (which isn't great either). So wait until the release of the game (I know that could be a while) and if it isn't there by then, put in your refund request. It will get knocked back by an automatic message, so email Steam Support, or make a support ticket about something else, to get a real person to look at it.
If Steam Support knocks back your request, and you've paid via a third party such as Paypal, you can lodge a dispute with the third party, and that might get Steam off their lazy ass to issue the refund.
Here's an example of someone getting a refund for an Early Access game (DayZ standalone) after the 14 day time limit.
www.reddit.com
Let's hope that Taleworlds just deliver what they said would be in the game so everyone is happy.
As an aside, I don't like their lack of transparency. If they aren't sure exactly how a feature will be implemented, that doesn't stop them from confirming it will be present in some form. No point leaving us in the dark about whether we are getting what we paid for.