AI Video Production · Personal R&D

SteamShort: From Game Trailers to Ready-to-Publish Shorts

An AI-assisted workflow that discovers Steam games, turns their trailers into narrated vertical videos, and schedules approved content across social platforms. I built it to experiment with automated video production while keeping control over the final edit.

2–5 minutes: Typical processing time per video
Around 1 cent: Production cost per video
3 platforms: YouTube Shorts, Instagram Reels, and TikTok

Problem

Turning a horizontal trailer into a short involves finding suitable scenes, checking pacing, researching the game, writing narration, editing audio, and reframing the video.

I wanted a system to automate these steps and make it easy to test different edits.

Solution

I built SteamShort to discover games daily and download up to three trailers per selected game. AI analyzes scene screenshots, while a separate algorithm checks pacing to help select and assemble the clips.

Using game information, scene descriptions, and available Steam and Metacritic reviews, it drafts narration, generates a voiceover, adjusts the source audio, and creates a vertical video.

I can change clips, edit the script, and rebuild the video before scheduling it through Buffer.

What I Delivered

Game discovery: Daily suggestions in Google Sheets, plus direct Steam URL input.
Scene selection: AI content analysis combined with pacing checks.
Video production: Clip assembly, narration, audio adjustment, and vertical reframing.
Editing controls: Review clips, regenerate or edit scripts, and rebuild videos.
Publishing: Schedule approved videos through Buffer.
Comment assistance: Draft replies across platforms, with direct YouTube replies and copy-and-paste replies for Instagram and TikTok.

Video Example

Original trailer

Finished short

Results

Videos typically process in 2–5 minutes, excluding selection and review.
Parallel batches produce four or five drafts to review and schedule.
The workflow could be adapted to podcasts, interviews, webinars, and long talks, with selection logic tailored to each format.

As of October 2026, the channels had approximately 58,000 cross-platform views in the preceding 30 days and over 100,000 total YouTube views.

Stack

Python · FastAPI · FFmpeg · OpenAI · xAI Grok · Gemini · Cloudflare AI Gateway · Steam API · Google Sheets · YouTube Data API · Buffer · SFTP