Get ready to defend the castle in the heart of the Oniverse, because things are getting serious! In Castellion, you and a friend (or just yourself, if you prefer) must race against time to build defenses against an onslaught of relentless monsters. Each turn presents a crucial decision: use the special ability of a newly revealed tile or place it as part of your ever-growing castle walls? The goal is to strategically form towers to anticipate incoming attacks, erect keeps to minimize damage, and create ranks to neutralize internal threats like dreaded traitors. The inhabitants of the Oniverse possess unique powers that can give you that extra edge when it counts. If you enjoy a challenge that tests your reasoning and planning under pressure, Castellion is a sure bet. With each game, the tension mounts as you strive to ensure your castle withstands the final monster's assault. It's a game that demands quick and wise thinking to prevent your kingdom from crumbling. Do you have what it takes to survive this onslaught and emerge victorious?