The State of Mobile Game Advertising 2021

The report examines U.S. mobile game advertising in 2021, focusing on ad network share of voice (SOV), creative formats, genre‑specific trends, and demographic alignment. Five gaming‑centric networks—Chartboost, Unity, Adcolony, ironSource, and Vungle—dominated game advertising, each maintaining over 90 % SOV from games on iOS and Android. In contrast, mainstream social platforms (Facebook, Instagram, TikTok, YouTube) displayed a more balanced mix of gaming and non‑gaming ads, with SOV from games ranging 40–60 %. AppLovin and MoPub shifted toward gaming in late‑2018, investing heavily in hypercasual publishers; this pivot increased their game SOV to roughly 90 % on iOS and 80 % on Android by early‑2021. AdMob’s focus on Google Play titles grew, with its game SOV rising from 60 % to 80 % by Q2 2021.

Creative analysis shows video ads remain the dominant format across networks, accounting for >50 % of game ad spend on iOS and Android. Playable ads gained traction among hypercasual publishers (e.g., AppLovin) and, more recently, mid‑core titles such as Call of Duty: Mobile and State of Survival. Full‑screen ads were more common on Android, especially for Google Play games.

Genre‑level insights reveal puzzle and hypercasual games rely heavily on gaming‑focused networks (Chartboost, Unity), while mid‑core and strategy titles favor broader platforms like Facebook and YouTube. Casino games concentrated on Adcolony, which also hosts many real‑money reward creatives.

The study concludes that despite IDFA changes, game advertising volumes remained stable into 2021. Publishers can optimize spend by matching network demographics to target audiences—YouTube for younger, male strategy players; Adcolony for older, female casino gamers—and by adopting emerging creative trends such as simple playable ads and background music to differentiate in a crowded market.