Responses
http://www.mangago.zone/read-manga/moon_led_journey_across_another_world/
http://www.mangago.zone/read-manga/arata_kangatari/
http://www.mangago.zone/read-manga/kono_sekai_ga_game_da_to_ore_dake_ga_shitteiru/
http://www.mangago.zone/read-manga/outbreak_company_moeru_shinryakusha/
http://www.mangago.zone/read-manga/world_customize_creator/
I'm sorry that most of them only have a few chaps and are ongoing ----one of them even looks like dropped to me.
Any good adventure mangas, with a boy going to another world with magic and monsters and stuff.