score:8
Assuming your activities in Croatia will be similar to what you've been doing in Slovenia, you can expect your daily budget to be similar too.
Out of the way towns in Croatia are a bit cheaper than Slovenia, but prices in places like Zagreb and Dubrovnik are pretty much on par with what you find in Slovenia.
Upvote:1
It will not be cheaper.
Croatia is at the top of the tourist season and cheap accommodation is already booked.
This year there are less people then the last year, but living on 50E per day is a bit tight. You can eat for 100kn per day, true, but for finding a decent bad you need a bit of luck.
I think you cannot find anything via Internet on your budget, but there are usually a number of old ladies at the bus and rail stations offering rooms at bargain prices.
Dubrovnik in particular is very expensive.