Metro: Last Light’s second batch of DLC, the Tower Pack, is now available. The Tower Pack tasks players with fighting their way up through a heavily guarded tower, which is also a virtual combat simulator. Each level is increases in difficulty and is packed with hordes of enemies, mutants and other deadly threats. The Tower Pack will cost $4.99/£3.99/€4.99. It is now available on Steam, Xbox Live, and PlayStation Network. PS3 users in Europe will get it tomorrow. The core game is also 60% off on Steam as part of the service’s mid-week madness sale.