Buy Warhammer 40,000: Regicide Steam Key EUROPE at the cheapest price on Premium CD Keys with Instant Email Delivery through PayPal, Crypto, and Credit Cards. Regicide, the strategy game based on chess set in the classic Warhammer 40,000 Universe from Games Workshop is an adaptation of ‘Regicide’, a board game described from the Warhammer 40,000 universe with similarities to the M2-era chess; played by mankind for over thirty-eight thousand years. Regicide blends board-game strategy mechanics with dynamic tactical abilities.