--- title: "Budget assets for mobile and browser builds" description: "Budget downloads, memory, video and input responsiveness on target devices while protecting the approved look." language: en canonical: https://bestadultgames.io/en/developers/guides/mobile-performance --- [Developers](https://bestadultgames.io/en/developers.md) / [Guides](https://bestadultgames.io/en/developers/guides.md) / Production Intermediate · A reading priority # Budget assets for mobile and browser builds Budget downloads, memory, video and input responsiveness on target devices while protecting the approved look. Best Adult Games · 3 min read · Sources checked 5 October 2026 · Based on published documentation ![Three cards connected by arrows, labeled Brief, Playable slice and Release; the Brief card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-intro-1.svg) *Set device and asset limits early, using the approved look as the reference. Best Adult Games · original diagram* A visual novel can be demanding even when little moves on screen. Large character portraits, backgrounds, clips and audio all contribute to download time, storage, decoding and memory use. Real-time scenes add animation, lighting and rendering work. A still scene deserves a budget too. Start with the approved appearance and a budget for the target devices. Browser emulation can reveal layout problems, but physical-device performance needs physical-device tests. For every performance claim, record the device, browser or runtime, build and test conditions so the result can be repeated. ## Choose representative scenes and devices ![Three cards connected by arrows, labeled Scene, Device and Baseline; the Device card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-1-1.svg) *Use representative scenes on named devices to establish a repeatable baseline. Best Adult Games · original diagram* Choose a quiet scene, one with several large assets, a sequence with frequent transitions, and any video or real-time segment. Specify the minimum supported device and a common device. Include the smallest screen on which players must be able to read text and make choices. Measure a cold start, repeat launch, scene transitions and sustained interaction. Keep the first asset download separate from cached runs. Record missing textures, slow decoding, input delay and reloads as failures in their own right; an average frame rate can leave these problems invisible. ## Measure the delivered asset budget ![Three cards connected by arrows, labeled Download, Memory and Frame time; the Frame time card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-2-1.svg) *Track memory and frame time as well as download size when judging an asset. Best Adult Games · original diagram* For every shipping asset, record export dimensions, file size and how many assets may sit in memory together. Download size does not tell you how much memory a decoded image will occupy: compression can make the file far smaller. Keep editable source files separate from the exports delivered to players. Match export size to how the asset actually appears on screen. Compare candidate formats in the target runtime before converting the whole library, and check transparent edges, gradients, text and faces against the approved artwork. A smaller file is little consolation if compression ruins the character close-up. ## Treat video as its own load ![Three cards connected by arrows, labeled Video, Decode and Playback; the Video card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-3-1.svg) *Judge video by startup and playback on the target device, including the fallback. Best Adult Games · original diagram* Give video a separate entry in the budget. Record resolution, duration, encoding, bitrate, audio and whether each clip preloads. On the target device, test startup, looping, pausing and the fallback. Playback in a desktop editor does not establish how the clip behaves in a browser or packaged mobile build. Load the variations the scene needs instead of every variation at once. Where the design allows it, offer a poster or still fallback and give the player playback controls. Measure the full transition, including decoding and any artwork present at the same time; the exported clip's file size covers only part of the load. ## Keep the interaction responsive ![Three cards connected by arrows, labeled Input, Feedback and Response; the Feedback card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-4-1.svg) *Check that busy transitions give feedback and accept each input only once. Best Adult Games · original diagram* Make text legible and controls large enough to use. Test rapid navigation, resizing or orientation changes, changing settings during playback, and returning from the background. While an operation is pending, check that input is accepted only once rather than triggering duplicate actions. For browser games, check keyboard, touch and focus behavior wherever relevant. A smooth scene still feels broken if an overlay hides the next choice or a transition silently blocks input. Treat visible feedback and reachable controls as part of responsiveness. ## Test optimization candidates in isolation ![Three cards connected by arrows, labeled Baseline, Candidate and Comparison; the Comparison card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-5-1.svg) *Count a change as a win after checking its appearance and the metric you meant to improve. Best Adult Games · original diagram* Change one relevant asset or rendering condition at a time and compare it with the reference. Record visual acceptance alongside the performance measurement. For 3D work, compare LOD, texture and lighting changes in the same scene with the same camera. Keep the original available for direct comparison. A reduction in payload alone does not establish a performance improvement. Compression can change decoding or upload cost, and renderer changes can alter the look. Measure the metric connected to the defect you are trying to fix. ## Set and enforce the release budget ![Three cards connected by arrows, labeled Budget, Device test and Release; the Budget card is highlighted in orange.](https://bestadultgames.io/images/developer-guides/mobile-performance-section-6-1.svg) *Use the slice's device results to set release limits, then recheck when content grows. Best Adult Games · original diagram* Use observations from the playable slice to set practical limits for delivered size, transition delay, memory failures and input responsiveness on the target devices. Recheck when a new chapter or asset type adds load. The budget should reflect what the build and devices can sustain. Archive the device report with the candidate build and mark untested devices as unverified. Accept an optimization when it preserves the approved presentation and improves the intended experience under repeatable conditions. ## Key decisions - Track download size, decoded memory and rendering cost separately. - Measure representative scenes on physical target devices. - Compare one candidate change with the approved reference. - Use emulation for layout checks and device tests for performance claims. ## Guide files [Asset register](https://bestadultgames.io/developers/templates/asset-register.csv) [Device test matrix](https://bestadultgames.io/developers/templates/test-matrix.csv) External model communities and publishing sites may contain explicit material. Source links open in a new tab; this guide does not load their previews. ### Sources & further reading - [Ren'Py Android documentation](https://www.renpy.org/doc/html/android.html) - [Ren'Py web documentation](https://www.renpy.org/doc/html/web.html) - [Godot performance guidance](https://docs.godotengine.org/en/stable/tutorials/performance/index.html) Last checked 5 October 2026. ## In this guide 1. [Choose representative scenes and devices](https://bestadultgames.io/en/developers/guides/mobile-performance#section-1) 2. [Measure the delivered asset budget](https://bestadultgames.io/en/developers/guides/mobile-performance#section-2) 3. [Treat video as its own load](https://bestadultgames.io/en/developers/guides/mobile-performance#section-3) 4. [Keep the interaction responsive](https://bestadultgames.io/en/developers/guides/mobile-performance#section-4) 5. [Test optimization candidates in isolation](https://bestadultgames.io/en/developers/guides/mobile-performance#section-5) 6. [Set and enforce the release budget](https://bestadultgames.io/en/developers/guides/mobile-performance#section-6) ## Related tools and models - [Ren'Py](https://bestadultgames.io/en/developers/tools?q=Ren'Py) - [Godot](https://bestadultgames.io/en/developers/tools?q=Godot) - [Unity](https://bestadultgames.io/en/developers/tools?q=Unity) [Production templates](https://bestadultgames.io/en/developers/templates.md) ## Related guides Production · Beginner · 3 min read ### [Plan a small adult game you can finish](https://bestadultgames.io/en/developers/guides/first-adult-game.md) Define the player experience, count the assets, and choose a release route before your first adult game grows beyond its budget. Read the guide → S reading priority Production · Intermediate · 3 min read ### [Preserve saves across episodic updates](https://bestadultgames.io/en/developers/guides/save-updates.md) Keep old saves usable with stable IDs, versioned state, representative test saves and clear update and recovery policies. Read the guide → A reading priority Production · Intermediate · 3 min read ### [Test and release a small adult game](https://bestadultgames.io/en/developers/guides/test-and-release.md) Test routes, controls, saves and the delivered package, then release a build you can identify, support and recover. Read the guide → A reading priority