Revenue is a rough estimate from public install counts × genre ARPD — order of magnitude only.
Half Life Monsters
Half-Life Monsters - VALVE Half-Life Quiz & Trivia Game Are you a real Half-Life fan? Welcome to the ultimate Half-Life quiz where you guess monsters, weapons, units, characters, places and levels from Half-Life and Half-Life 2 (VALVE universe). This is a Half-Life trivia / guess the picture quiz made for hardcore fans of VALVE’s Half-Life series. If you love Gordon Freeman, Alyx Vance, the G-Man, Black Mesa, City 17, the Combine, and all the iconic Half-Life enemies and monsters, this game is for you. WHAT YOU WILL GUESS (Half-Life Quiz) ✅ Half-Life monsters (Headcrabs, zombies, alien creatures and more) ✅ Half-Life weapons and equipment ✅ Half-Life characters (main and side characters) ✅ Half-Life units and enemies ✅ Half-Life locations and levels (Black Mesa, City 17 and more) ✅ Content from Half-Life, Half-Life 2, and more VALVE Half-Life universe trivia EXTRA CONTENT (MORE HALF-LIFE TRIVIA) ✅ Half-Life: Opposing Force extras ✅ Half-Life: Blue Shift extras ✅ Half-Life 2: Episode One extras ✅ Half-Life 2: Episode Two extras FEATURES ⭐ Rewards after each level ⭐ Online levels (more content added over time) ⭐ Multi-language support: English, German, Spanish, Russian, Arabic, Italian, Polish, French, Hebrew and more ⭐ Cool sounds and graphics ⭐ Simple and addictive Half-Life quiz gameplay for every fan of VALVE classics Can you complete all levels and prove you’re a true Half-Life / Half-Life 2 expert? Good luck, Professor Freeman! Disclaimer: This is an unofficial fan-made Half-Life quiz. Half-Life and VALVE are trademarks of their respective owners. This app is not affiliated with or endorsed by VALVE.
Audience
Installs
How many people have installed this game, as the storefront reports it. This number is worldwide — unlike the price, the same package answers with the same install count in every market we asked — so it carries no country. Each source below is a different kind of number and they are never drawn on one axis.
Installs counted by Google Play221,875
Aug 12, 2026 — Sep 18, 2026 · 38 readings
Google Play shows “100,000+” on the store page.
Play publishes a precise install counter alongside the rounded step users see on the store page. This is that counter, worldwide, as it stood each day we asked.
Of the eight storefronts we track, only Google Play publishes an install count we can read. Where a store publishes nothing of the kind, this panel shows nothing rather than a zero.