Play mystery games, detective adventure games online free for PC, Mac desktop, laptop, notebook with no download: Harry Quantum 3 game, a cool private investigator game/ point and click hidden object game for kids (girls & boys), teens to play now. Interactive RPG games, fun new detective puzzle Flash games..
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Detective Adventure Game - Harry Quantum 3: Cheese Carnival

Rating: 8.7/10 - 448 votes

Show off your super sleuthing skills in another fun detective adventure with this enigmatic private investigator. Harry Quantum 3: Cheese Carnival is a challenging and quirky analytical thinking puzzle and hidden object-themed game for older kids / teens where you must collect and combine items in order to solve the head-scratching mystery of the missing carnival goers (and to find some delicious green cheese for your alien buddy).

Harry Quantum’s world sure is filled with wacky characters, odd scenarios, and tricky brain teasers. Playing as the skilled detective, you must uncover the mystery by clicking on various interesting objects, combining items to make tools, and generally getting up to some top-class snooping around!

Sharp eyes, good logic, smart strategy, and sheer tenacity are essential skills required here as you move between game areas, trying to unlock different elements and mysteries. Ok Harry, it's time to live up to your detective hero status, and get into the thick of the action.

How to Play: This game currently does not work on IE11, but should work for you on Chrome, Safari, Firefox, and Microsoft Edge.

At the beginning of the game, Harry is informed that there are people going missing from the nearby Cheese Carnival. Harry’s alien sidekick requests that you go to the Carnival and obtain proof, as well as some green cheese (Apparently, green cheese is a preferred delicacy in outer space!).

Using your computer mouse or touchpad, you must click on any interesting items in each scenario / game area. These items may be able to be ‘collected’ in the found items area at the bottom of the game screen (For example, Harry needs a carnival ticket from his office before he can go to the carnival).

Trial and error are part of making progress. Keep clicking, and trying to combine items until you can move forward in the case. In some instances, you may, for example, have to play mini-games in order to win prizes. Make sure to click on anything or anyone that looks interesting, and carefully read the messages that pops up. You never know when a clue might present itself!

If this Flash-based game no longer works on IE11 or Chrome browser on your PC / MAC, try playing Firefox browser with Adobe Flash player installed.

Before you submit an error report, please review these common issues & solutions:

  • Note: If the game is taking a while to load, please press Ctrl and F5 buttons on your keyboard at the same time to refresh the page without local cache.
  • Please use US or Canada based VPN or Proxy service in case you are having a problem with Blocking or Connection Reset or see that Game does Not Load properly. We are currently looking for other reasonable solutions as well.
  • If you see a GAME BLOCKED message or if a game does NOT LOAD in 3-5 minutes even after page refresh - this is not blocked by us. Please speak to school/office administration or your network provider. They are blocking it.
  • If the game DOES not FIT the screen (part of the game area is below above the browser) - see the GO FULL SCREEN button just at the right above the game. This should solve it.
  • Make sure that Javascript is Enabled in your device browser.
  • You may only see a blank screen / or no game screen at all if advertisements are in any way restricted on your browser.
  • Make sure that No Ad Blocker is enabled on your browser (Many game developers only income source is through ads, so they don't make the games available if ads are blocked).
  • Even if your Ad Blocking software is disabled, it may cause an issue with loading an HTML5-based game.
  • You need a High Speed internet connection because some games use large files which take a minute or two to load for the first time.
  • Some games require you to tap/click on the game screen area when they load in order to start.
  • Playing on a different device or browser (with different settings) can often solve the issue.
  • Games are not available in all jurisdictions outside of the USA.

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