Myself, as a point&click adventure fan (and developer of The Train ), can recommend you Broken Sword AppStore Link (this is a port of a very famous point&click adventure game for PC). A little bit different than The Train, because it is from the 3rd person perspective, where you can see your character walking around. If you are looking for very similar games to The Train (from 1st person perspective), I can recommend you 1112 series AppStore Link (it's also indie game - like The Train) The Train episode 02 will be available in few more weeks (first week of May is the target). Regards, The Moonwalls.
Not sure if you're still looking, but I picked up a couple point & click adventure games yesterday. I think they've been on sale a few days now, so you may be aware of it already, but I'll mention them just in case. Jules Verne's Return to Mysterious Island Jules Verne's Secrets of the Mysterious Island Dracula - Path of the Dragon (all three parts) Egypt The Prophecy (all three parts) Nostradamus The Last Prophecy (both parts) They're all a dollar. I got both Mysterious Island ones and all three Dracula ones.