Sometimes when I play a game, I want a deep story that makes me feel connected to the characters. Other times, I want a nonsensical romp that allows me to shut my brain off and laugh for a minute. Squirrel with a Gun seems to be that kind of game. And good news, PlayStation Plus subscribers can play that game and others starting on April 21. PlayStation Plus is Sony's version of Xbox Game Pass , offering subscribers a large and constantly expanding library of games. PlayStation Plus has three tiers -- Essential ($10 a month), Extra ($15 a month) and Premium ($18 a month) -- which each give subscribers access to games. But only Extra and Premium tier subscribers can access the PlayStation Plus Game Catalog, while Essential subscribers can access only the monthly games.  Here are all the games Sony is adding to the PlayStation Plus Game Catalog in April. You can also check out the games all PS Plus subscribers can play until May 4 . Squirrel With a Gun What more do I need to say about this game?…