Your specific requirements make it hard for find games you might like and....I haven't yet played Life is Strange(I have it, but I haven't started it yet), so I can't compare.
Most of Wadejet's games tend to be pretty good, IMHO. I discovered them with the Blackwell series,which is about a woman who discovers she can see and talk to ghosts...and one them of is pretty much stuck with her at all times. She pretty much has to convince ghosts that they are dead and to move on, often by discovering how they died. I enjoyed the series, which spans 5 games(and each one gets more refined). My only issues are that the first game has a couple "gamey" puzzles and a massive info dump early in to explain the whole "medium" thing. The final game, while quite good, decides that instead of continuing with the big plot thread set up by the penultimate game, decide to do something else entirely and wave off the big plot from the previous thread with a single sentence. Maybe someday we'll get an interquel to tie up that particular loose thread.
Since then I've played:
-Gemini Rue, which looks like something from the 1990's but has an interesting story(and gunplay at points)
-Resonance.It's very colorful while having an interesting interesting story and allows you to control four characters and switch between them to solve puzzles. If you die, the game auto-rewinds to the last safe place where you could make a different decision.
-Primordia. I'm still playing this, but all the characters are Robots in a post-apocalyptic future who worship the human race, which has long since gone extinct(maybe?).