limit my search to r/ Warframe. use the following search parameters to narrow your results: subreddit:subreddit: find submissions in "subreddit". I'm a relatively new player to warframe and am currently building my first new warframe Oberon. However my goal is to get Limbo and I'm. There aren't any free warframe slots given from mastery ranks. You're probably confusing it with loadout slots which are unlocked from every.