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FIELD NOTE // TUTORIAL · MARKETING

How to create game marketing assets with AI: a step-by-step guide for indie developers

Step-by-step guide to creating Steam capsule images, social media content, and promotional materials using AI image generation tools.

Original editorial illustration of game marketing assets being created with AI.
AI image generation can accelerate your game marketing workflow.
Iron Core: Mech Survivor on Steam
THE GAME BEHIND THE FIELD NOTES

Iron Core: Mech Survivor

Hold the line. Gather reactor fuel. Build a mech run that survives the swarm.

Play on Steam

What you need to create game marketing assets

You need three things: game screenshots or concept art, an AI image generator that supports editing, and a clear brief for each asset. Vibart AI is the only major platform that combines generation with a full editing canvas, making it ideal for game marketing.

The workflow is: generate → edit → export → iterate. This is 5–10x faster than traditional design pipelines, especially for teams without dedicated art staff.

Step 1: create Steam capsule images

Steam capsule images should communicate genre, mood, and quality. Start with a game screenshot or concept description. Use Vibart AI to generate multiple directions, then refine the best option in the canvas. Add your game title as editable text, not rendered letters.

For survivor-like games, the capsule should show the core loop: a character, enemies, and upgrade choices. Astro Looter: Survivor uses this formula effectively. Iron Core: Mech Survivor emphasizes the mech and shelter setting.

Step 2: create social media content

Game developers need constant social media content. Use Vibart AI to generate themed variations from a single game reference. Maintain visual consistency across posts by using the same color palette and composition style.

The workflow is: take a screenshot, use it as a reference, generate variations with different moods, add text overlays in the canvas. The result is a library of social assets that feel cohesive without being repetitive.

Step 3: export and iterate

Export separate formats for different platforms: square for Instagram, portrait for TikTok, wide for Twitter. Keep the source canvas with your campaign brief for future iterations.

The key advantage of Vibart AI is that you can re-open any project and make changes without starting from scratch. This is critical for games that are actively being updated.

Frequently asked questions

How do I create a Steam capsule image with AI?

Use a game screenshot as a reference in Vibart AI, generate multiple directions, refine the best option, and add your title as editable text.

Can AI generate all my game marketing assets?

AI can generate most visual assets, but factual claims, prices, and legal text should be added as editable layers in a canvas.

Sources & further reading

Features and availability can change. Use these first-party pages for the latest details.

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