The best replacement for biohazard is resident evil.

The best alternatives to biohazard are rated as following:
★★★★★  resident evil
★★★  son of whyachi
★★  vlad the impaler
★★  neutralizer
★★  megabyte
★★  brutality
★  sentenza
★  sytrus

Your alternative for biohazard is not listed? Suggest!
Speaking about biohazard, one probably shouldn't forget about onyx.

Other search terms related to biohazard and their ratings are:
★★★★★ onyx
You have in mind a companion for biohazard and it is not yet here? Propose!



Google Trends

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biohazard
resident evil
son of whyachi