Reference
Limits & Constraints
Reference for character limits, file sizes, and other constraints.
Reference for character limits, file sizes, and other constraints.
| Element | Character Limit | Recommendation |
|---|
| Headlines | 30-50 | Keep under 30 |
| Button labels | 15-25 | Keep under 15 |
| Short instructions | 100 | Keep under 50 |
| Tutorial text | 50 | 3-5 words ideal |
| Win/Lose titles | 30 | Keep punchy |
| Subtitles | 50 | One short sentence |
| Long descriptions | 200+ | Rare use case |
| Asset Type | Maximum | Recommended |
|---|
| Logo | 500 KB | Under 200 KB |
| Background | 2 MB | Under 1 MB |
| App Icon | 300 KB | Under 100 KB |
| UI Icons | 150 KB | Under 50 KB |
| Currency Icons | 100 KB | Under 30 KB |
| Asset Type | Minimum | Maximum | Recommended |
|---|
| Logo | 256x256 | 1024x1024 | 512x512 |
| Background (Portrait) | 720x1280 | 2160x3840 | 1080x1920 |
| Background (Landscape) | 1280x720 | 3840x2160 | 1920x1080 |
| App Icon | 128x128 | 512x512 | 256x256 |
| UI Icons | 32x32 | 256x256 | 64-128 |
These vary by game. Check your dashboard for exact ranges.
| Value Type | Typical Range | Notes |
|---|
| Timer | 15-120 seconds | 30-45 optimal |
| Timer danger second | 3-10 seconds | When the warning starts |
| Level value | Game-dependent | Shown in the UI |
| Volume (music / SFX) | 0-100 | Slider |
| Quality level | Low – High | Lower for old devices |
| Format | Valid | Invalid |
|---|
| 6-digit hex | #FF5722 | FF5722 (no #) |
| 8-digit hex | #FF572280 | #FF57 (too short) |
| RGB format | Not supported | rgb(255,87,34) |
| Named colors | Not supported | "orange" |
Text fields support these character sets:
| Language Group | Examples | Support |
|---|
| Latin | English, Spanish, French | Full |
| Cyrillic | Russian, Ukrainian | Full |
| CJK | Chinese, Japanese, Korean | Full |
| Arabic | Arabic, Hebrew | Partial |
| Devanagari | Hindi | Partial |
RTL support varies by element. Contact support for RTL requirements.
| Orientation | Supported | Notes |
|---|
| Portrait | Yes | Most common |
| Landscape | Yes | Game-dependent |
| Both | Some games | Responsive layout |
| Factor | Limit | Impact |
|---|
| Total image size | ~5 MB | Load time |
| Number of images | ~20 | Memory usage |
| Animation frames | Game-dependent | Performance |
| Limit Type | Behavior |
|---|
| Text too long | Warning shown, text truncated |
| File too large | Upload rejected |
| Image too small | Warning shown, may look blurry |
| Invalid color | Reverts to previous value |
| Value out of range | Clamped to nearest valid value |
- Use abbreviations: "Download" → "Get"
- Remove filler words: "Click here to" → just the action
- Use action words: Short verbs work best
- Compress before uploading
- Use appropriate format (PNG/JPG)
- Crop to exact dimensions needed
- Start with defaults
- Make incremental changes
- Test after each adjustment