A Humble Bundle offering Generation Zero and several of its expansions. Paying $8 unlocks the base game plus seven add-ons including FNIX Rising, MP, Heavy WP, AICP, TEP, AU, CAP, and RFP. Paying $12 instead adds eight more expansions such as CWSP, BSP, Resistance WP, US WP, BDP, SWP, SVP, and TEP2.