- Someone made a CAPTCHA wherever you play Doom connected Nightmare difficulty Ars Technica
- Protect Your Site With A DOOM Captcha Hackaday
- New Captcha requires defeating 3 enemies oregon you're Doomed to repetition it Tom's Hardware
- Prove you're quality by playing Doom successful a captcha Boing Boing
- People are playing a caller DOOM-themed CAPTCHA TechCrunch
Someone made a CAPTCHA where you play Doom on Nightmare difficulty - Ars Technica
2 days ago
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