Block Keep

 is an arena in Block N Load.

Summary
The outer walls of these castles might only be made of wood but the inner structures which protect the Base are far stronger with stone and granite. Strategically placed traps can help to defend your own walls and explosives can help level those of the opposing side. Tunneling under the walls could create an alternative route for your team to avoid enemy defenses but this might leave a long climb upwards to the Base.