First, let’s clear up a major point of confusion. In the Serious Sam franchise, there are two very different games with the number "2."
Let’s address the elephant in the room. Unlike Serious Sam: The Second Encounter (which has an official, though dated, Android port by Croteam and Devolver Digital), was never officially released on the Google Play Store by the original developers. download serious sam 2 for android exclusive
If you don't own the PC game, you cannot legally play the full Android version. Piracy hurts the franchise; buy Serious Sam 2 on Steam for $9.99 to support Croteam. First, let’s clear up a major point of confusion