Red dead 2 is absolutly worth 30 euro, it has stunning graphics (therefore quite demanding at ultra) and a very long lifetime, with incredibles details which makes the game really realistic (see o knightz o on youtube).
Some might say it is too slow and boring sometimes, but I disagree. Indeed, you ride your horse a lot at the beggining, but you can activate auto travel and do your thing until you arrive, or if you want, you can afford to take the train. Moreover, later in the game you just unlock fast travel which prevent you from crossing the whole map.
It's one of the best game I've ever completed
If you spent something like 50$ to get CyberPunk2077, you won't regret spending 30$ on this game.