Most studios approach the game business model as an open decision. Free-to-play or premium, ads or purchases, subscription or battle pass, all of it presented as a menu to be selected from once the game is roughly designed.
In practice the decision was made earlier, by the genre, and studios that fight that constraint spend a year discovering it the expensive way.
What the genre data shows
Where in-app purchases dominate, they dominate almost completely. Analysis covering roughly $900 million in verified purchases and $7.2 billion in ad revenue over the past year puts midcore, strategy and RPG titles at around 90% of revenue from purchases, and casino at about 83%. Advertising in those genres exists to extract a small amount from people who will never pay; building a business plan on it produces design compromises that damage the players who actually pay.
At the other end, casual and hyper-casual titles run on advertising volume, and the IAP catalogue is mostly an ad-removal purchase plus a few conveniences. The mid-range genres are where genuine hybrid design is required, and where most of the difficulty lives.
Premium still works, and it works in a narrower band than its advocates claim. Narrative-driven and mechanically distinctive titles with strong word of mouth continue to sell at a fixed price, because the buyer knows exactly what they are getting and there is nothing to gate progress. The revenue depends almost entirely on store conversion before install rather than behaviour after it, which makes discovery the whole business rather than one part of it.
The subscription arithmetic worth doing early
A $5 to $10 monthly plan yields somewhere between $0.17 and $0.33 per subscriber per day. Put that against your existing ARPDAU and the question answers itself: for most free-to-play titles a subscription is a retention and commitment device with a modest revenue contribution, not a growth engine.
The exception is where the subscription is the product. Cloud gaming and telco bundling operate on completely different unit economics, because the subscriber is buying access rather than an advantage inside a free game.
Retention is the real constraint
The most instructive data point of the past year comes from the top of the market. Royal Match grossed roughly $1.37 billion in 2025 and still finished slightly below its 2024 number. That is an IAP-dominant model in its ideal genre, executed at world-class level, with resources most studios will never have, and it went backwards.
The lesson generalizes. An IAP-dominant model at scale is a retention business first and a monetization business second. A title whose retention is outside the top decile of its genre will underperform on exactly the same monetization design, and no amount of offer optimization closes that gap. Studios routinely hire monetization consultants when their problem is a day-seven curve.
A practical sequence
Pick the genre and the target geography first, because those set the model. Establish the funnel tiers you intend to serve, from non-payers through to high-value spenders, and be honest about which tier your design actually rewards. Instrument ARPDAU, payer rate and lifetime value from the first playable build rather than after launch. Then test continuously against the genre benchmark rather than against your own previous week.
The best monetization design reads as part of the game rather than as a system bolted on top of it, and that outcome comes from treating it as a design problem with revenue consequences. Studios that treat it as a revenue problem with design consequences end up with the version players complain about.