Forced to watch ads or given rewards for watching ads.

Many games, especially free-to-play games, contain advertising. Instead of paying for the game with money, you pay for it with your attention. People are more willing to part with their attention than with their money, and often aren't aware of how much time they are giving to these in-game advertisements.

Advertisements by themselves are not necessarily a Dark Pattern, but they can become one if they are made too intrusive and interrupt normal gameplay too frequently. For example:

1) Ads that cannot be skipped.
2) Giving rewards for watching ads.
3) Tricking you into clicking on an ad by placing it in a place where you might accidentally click on it.
3) Disguising an ad to make it look like part of the game.

Games can sometimes treat watching an ad as a form of in-app currency to enable other dark patterns. For example, some games allow you to replenish your energy by watching an ad. This is a form of Pay to Skip where you are paying with your attention instead of money.
Citations and SourcesUXP2 Dark Patterns
Disguised Ads


Tap Tap Fish - AbyssRium Tap Tap Fish - AbyssRium
"Many pop up ads, lots of which are loud videos."

Plants vs. Zombies™ Plants vs. Zombies™
"Full-Screen ads pop up, but these can be removed."

Off The Road - OTR Open World Driving Off The Road - OTR Open World Driving
"Fiximg the car, obtaining cards and opening card packs give you an ad every time, and ads are stored locally so you cant escape by using blokada or similar apps."

Head Ball 2 Head Ball 2
"Too many ads."

Tiny Tower Tiny Tower
"You can watch ads in exchange for bux."

Delicious World - Cooking Game Delicious World - Cooking Game
"not intrusive but you can get double coins if you watch ads (specific amount per day)"

Word Hop ‏‏‎‎‎‎ ‏‏‎‎‎‎ Word Hop ‏‏‎‎‎‎ ‏‏‎‎‎‎
"yes, just after passing a level, everytime"

Lords Mobile: War Kingdom Lords Mobile: War Kingdom
"in the for of news that direct you to a store outside the app store or their socials"

Dragon Mania Legends Dragon Mania Legends
"Ads are forcibly shown to players that have not spent any real money. Ads can be watched in exchange for in-game rewards."

Alive In Shelter +18 DLC Alive In Shelter +18 DLC
"interstitial ads"