Hmm, well, the titles are interesting because they imply something about the world or story, even if the game unfortunately doesn't actually deliver on that implication. Your concept suggests lots of good words: alpha, ascension, lupine, wolf, leader, challenge, struggle, pack, destiny, orphan, alone, abandoned, pup, hierarchy, earn, reclaim...
You could call it Lupus Rex, Packsong, ProvingGrounds, Wolf's Proving, Wilderness Proof, Wilderworthy, Wolf's Worth, Survive&Reclaim, Alpha's Claim, Claim&Climb, Animal Ascension, Earned Ascension, Alphascension, Pup's Place, Archy Outcast, Packceptance, Bandon, Bandoned, Saken (was trying to convey the concept of a character who un-abandoned themself in a proactive way instead of being rescued or adopted by someone else, but not sure how to say that...)
Just out of curiosity, have you seen the anime series Useless Animals (Damekko Dobutsu)? I liked that series, it was a lot of fun.
I want to help design a "sandpark" MMO. Optional interactive story with quests and deeply characterized NPCs, plus sandbox elements like player-craftable housing and lots of other crafting. If you are starting a design of this type, please PM me.