Steam – Does the absence of a region restriction notice mean a game is region free

The problem of region restriction and low violence content has already been discussed here. Basically those restrictions are applied based on who purchases the game, not who plays it. You need somebody in a non restricted area to gift that game to you. Alternatively, you could spend your holidays in one such country and purchase the game from there with a local payment method (apparently you can buy prepaid cards from gas stations, or at least that's what Redditors say to people who have no credit card; YMMV).

A Steam discussion here suggests that buying yourself from other countries isn't allowed and could get your account closed.

What you can do is get someone from another country to gift you the game and they'll only have to pay the amount for their country. Steam has nothing against international gifting.

The Steam Subscriber Agreement states the following:

You agree that you will not use IP proxying or other methods to disguise the place of your residence, whether to circumvent geographical restrictions on game content, to purchase at pricing not applicable to your geography, or for any other purpose. If you do this, we may terminate your access to your Account.