I still dont agree with you though because calling it high or low is a relative statement and I can think of wayy more games especially in this genre with higher barrier to entry. I'm honestly struggling to think of one with lower barrier to entry than haven pvp. Mortal online 2 was harder to get into pvp, life is feudal/wurm extremely grindy and lots of pitfalls hard to get into pvp, conan exiles same story, grindy lots of weird mechanics, harder to get into pvp, myth of empires also have mega grind requirement, last oasis harder to get into pvp, not many noobs just big factiosn with big op machines.
How can you mention having played eve and still think haven pvp is hard to get into?
Honestly when were talking about skill I was thinknig theres potentially 1 game where haven might not be lower skill than which is wurm but since you changed it to "barrier to entry" then wurm literally requires
years of grind to get into the pvp lol
My first haven world all I did was nonstop pvp and I didnt have any friends who had played the game I just joined myself and pvpd all of world 5, I was a shit pvper but thats all I did because I just gank spruces and I had a lot of fun and success. That was when pvp was way more complex than it is now and perma death. Now pvp is you risk nothing and you have an extremely simple system and stats are equalized. What is the barrier to entry? Wow you have to read a forum thread beforehand and its not instantly intuitive... Even in your example of tic tac toe you have to look up the instructions or have someone teach you first
The barrier of combat moves and stats might be a barrier to top tier pvp but not pvp in general. Like I said on my first world I got 30 kills and didnt engage any top tier players at all other than running away once or twice. Also it's really not that big of a barrier. Especially compared to every other game like what I listed. I reckon if I started haven this world as a brand new hermit I could figure out how to get a spear, how to hunt animals with a rowboat and how to farm all the moves within 2 weeks. The guides exist. It's not rocket science. It's not eve online.
This is 1 of the lowest skill, lowest barrier to entry sandbox open world pvp games you can possible find.