Playable demos were once standard and are now rare outside a few genres. The reasons are production cost and the fact that several cheaper substitutes have taken over the same job.
A demo is a small game, not a slice of a big one
A demo has to stand alone. It needs its own opening, its own tutorial, its own stopping point and a build that will not fall over in front of a first-time player.
That means separating a chunk of a game from the systems it depends on, then rebuilding the missing scaffolding around it. Save data, progression curves and unlock gates all assume a full game sitting underneath them.
The work lands in the same months as the final push on the game itself, competing for the same people. A studio that builds a demo is choosing to delay something else.
Refund policies quietly became the demo
Digital storefronts allow returns within a limited play window. A buyer who dislikes a game in the first hour can undo the purchase.
That delivers the try-before-committing function a demo used to serve, without a publisher building anything. The burden shifts to the store's refund handling rather than the developer's schedule.
Refunds also happen after payment rather than before it, which suits a storefront. The money moves first, and only a minority of buyers reverse it.
Watching has replaced sampling
Before broadcast play was common, the only way to learn how a game felt was to hold the controller yourself. Now hours of footage exist around release, and the opening of almost every game is visible for free.
Viewers form firm judgements from that footage. The demo's persuasive role has been absorbed by other people's playthroughs, which cost the publisher nothing and travel much further.
The effect on sales cut both ways
A demo converts undecided players, and it also talks players out of a purchase they would otherwise have made. Publishers see both movements in the same figures.
Where a game's appeal builds slowly, a short sample misrepresents it, because the opening hour of a long game is often its weakest stretch. Putting that hour on trial is a genuine risk.
So the decision turns on confidence. Studios certain that the first hour sells the game release demos; studios that are not, quietly skip them.
Where demos still make sense
They survive around showcase festivals and for games whose appeal is mechanical rather than narrative. A puzzle or driving game can be understood in ten minutes and gains from being felt.
They also persist for small studios without marketing budgets, where a demo works as advertising rather than as a sales risk. The pattern holds: demos appear where a game is cheap to sample and hard to describe.