With some friends of mine, I play pathfinder in a dungeon-crawler way (a bit inspired by the phenomenal game Darkest Dungeon, so the heroes venture into dungeons to gain treasure and rebuild a town, we more or less play the dungeons only, with social interaction limited to the players and interacting with things in the actual dungeon)
In this setting, the horse or camel mount that the Samurai gets is totally out of place, and I am looking for suitable replacements to change only the mount (and maybe the bonuses he gets to mounted combat), but no other class features (like the challenge). What can I offer the player of the samurai? He is level 5 at the moment (started at lv1) and has not yet complained about not having his mount, but still I feel it is unfair and gives him a disadvantage.