Personally, I just play RS3. OSRS(Old School RS Gold) has a very simple combat system, less abilities, exceptionally grindy and slow ability development (not much high level skilling material afaik). Many people enjoy it as it is more competetive and nostalgic for people who used to play. RS3 has improved graphics, more skills with content all the way around the finish, a very great but intricate combat system, along with an amazing story line. Don't hesitate to give both a try - if you activate membership you'll be able to log in to both games with same specifics and become a part on either, but can not play both precisely the same moment.
A good deal of content (mostly skilling but also battle ) in the two games you can just click a resource/monster and only wait till before your bag is full or source depletes. You get logged out after five mins of inactivity though. RS3 enables faster progress using more input for most activities. When you first begin you'll most likely have to be more engaged to understand it and move through the first levels. Saying this there is lots of articles which demands a great deal of focus (bossing/dungeoneering/minigames etc). As a brand-new player you likely won't get the entire advantage of being a member, I'd say wait till you feel you are missing out by being f2p or need to learn more about the map longer. There's probably a couple of hundred hours of gameplay in the free edition.
There's not any true better in my view. It is just down to a matter of personal preference. That said a lot of what OSRS is graphically, interface and gameplay wise may be approximated with settings from RS3 (like lowest graphical settings and using legacy style interface and battle ). Yes. Especially while playing a different game, watching a film, or something like this. There are a whole lot of activities associated with leveling in RS that do not require much of your busy attention. Additionally, it is low resource. So on a decent machine it can easily be ran alongside other graphical things.
I would recommend having all battle stats into 60, having a entire level around 1200 and having done all completely free play quests prior to starting in on a membership. Even though it's possible to gain from having members on the first day. You will be a good deal less gated and ready to get directly into the lower grade of all of the members content the way I prescribe. As there are a lot of areas that are gated by quests. These quests often have free play pursuit prerequisites and that I believe the majority of the members gear (worth having) begins at about grade 60.
I have played a lot and it is an excellent game to both play actively and also"semi-afk" second monitor distance just like you mentioned. There a large number of skills which are dull and only straight afk time sinks you can just chill watching Netflix play league while you obtain profits on the second monitor. However, there is also plenty of tasks that could require more principal monitor and active playing like battle, bossing, quests etc.. I'd say osrs has more of a grindy texture to it but also has a smoother pair of gameplay with its tick system mainly due to graphics quality imho.
However there's a great deal of game mechanics which may be learned to be"optimal" or efficient etc.. RS3 is somewhat less grind hefty or at least the xp prices are inflated therefore getting to higher levels is much simpler and quicker and there's a very different combat system that is near some WoW/ classic mmorpg style just achieved in a tick system of buy rs gold paypal.6 minutes a tick. Personally I have spent a considerable more time enjoying RS3 over my osrs accounts as a result of images and eventually using a computer that can run everything on ultra and maintain 70+ frames easily.