Grounded is rated T for Teen by the ESRB, and as 7+ by parents on commonsensemedia.org.  This is an excerpt from the ESRB: "This is a survival-adventure game in which players control ant-sized humans in backyard environments. From first- and third-person perspectives, players search for resources, craft weapons, build shelters, and battle realistic, over-sized insects. Combat can be frenetic at times, with players using swords, clubs, and spears to attack insects that slash, bite, and spit at players. Human characters emit small splashes of blood when injured; insects emit splatters of green or yellow blood when killed."