If you are looking for a relaxing and heartwarming manga, then I recommend this one. It's about a modern japanese restaurant being connected to another world. The translations are a bit rough in the beginning, but it gets better in the later chapters, I enjoyed reading it.
This is also a fantasy restaurant story, where a modern restaurant is connected to a fantasy world through multiple doors scattered all over the other world. I have watched the anime, and I really liked it, it is heartwarming and I enjoyed every bit of it. I wish that the story continues further after catching up to the anime.
Ah, speaking of food, this story doesn't have any restaurant involved. Yet our mc has a really good cooking skill and convenient cooking menu. It's so amazing that he got the attention of a legendary creature, Fenrir! Hahaha I really like this concept, and I am really enjoying it so far.
Okay, moving on, this manga is about a fantasy version of Phoenix Wright, since our mc is a lawyer. I like this concept, and I want to see more different scenarios with different fantasy creatures. The story is comedic and fast paced, but I want more!
Transported to another world to become heroes (generic). Our mc learns that he is specializes in healing magic (okay?) He gets into a training camp to be able to use his healing magic in the front lines (wait what?) Haha well, that was the gist of it. It is enjoyable so far, his training is worse compared to the warriors/heroes. It's interesting and funny so far xD
A story about how the soldier, Hans, only wanted to have a peaceful life in the countryside; yet his peace became hindered by the OP Japanese people that appeared near his town. I like how the mc belongs from the world, unlike other isekai mangas that revolved around the person who transported. This is a nice change of pace, and the characters and story feels refreshing. Of course there are some cliche moments but it is still enjoyable.
This story is about how the mc was transported along with his classmates to become a hero... yet he doesn't want to! He finds it a hassle, so he prefers the travel on his own. During this, he finds out that he has a power called "word magic", so he uses this during his travels. I find this a bit generic; an mc who travels and meets companions in a fantasy world, yet it is still a good read.
Our mc gets involved with the goblins who took her sister as their goblin wife. Thus, she decides to travel to the goblin world in order to save her sister. During this, she comes to learn more about the goblin world, as well as her forgotten past memories about this place. It has an interesting story plot, but I prefer binge reading this type of stories. It is good so far. Oh, this is also shoujo, so expect some romance involved. This isn't rpg-like either; idk if this belongs in this list
When someone pushed our mc off a cliff in the game, she gets transported to another fantasy world. She can still access some of her game inventory, but she has to start at a low level again. She also learns that she is unable to log out, so she is stuck in that world. It's shoujo, but it doesn't feel like it (yet?) since she focuses on leveling up and adapting in that world. I like how the mc is slightly devious and strong-willed, so unlike many shoujos, she isn't bothersome.
It's interesting so far. The mc and his group of classmates gets transported to a world where contracts are important. He refuses to become a hero and decides to go explore and understand the world freely.
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Hey there! I like the RPG-esque feel to manga as well. I clicked through your list, and here are some that I didn't see. (Ones at the top are my most liked!)
I hope you enjoy~
*** http://www.mangago.me/read-manga/spirit_migration_01/ (personal favorite next to OSO)
http://www.mangago.me/read-manga/tensei_shitara_slime_datta_ken/
http://www.mangago.me/read-manga/log_horizon/ (The anime is excellent, but I haven't read the manga yet.)
http://www.mangago.me/read-manga/to_aru_ossan_no_vrmmo_katsudouki/
http://www.mangago.me/read-manga/remonster/
There's actually one more that I forgot that's really good, and definitely worth reading if you have time! (I'd rank this tied with OSO and spirit migration.) It's less of the linear RPG-esque, but has many of the same elements.
http://www.mangago.me/home/mangalist/90967/?filter=manga
Wow thank you so much for these suggestions! They all seem interesting xD also I wanted to say that slime and remonster were already part of my list, but it's ok ^^ i've also watched log horizon and I enjoyed it as well. Speaking of which, yea, I think it is good to read the manga too eh. I'll definitely check these out! Thank you again for telling me about these ^^