Demo Guide

Project Tomorrow Demo Performance: Lag, Stutter & Crashes

Honest, community-grounded troubleshooting for the demo — what to try first, and a clear note about what is officially confirmed.

What players report

The most repeated demo complaint in community discussions is performance in built-up zones: larger bases with many structures and active terraforming machines tend to slow down. This is player feedback, not an official benchmark — the developer has not published performance guidance for the demo.

First settings to try

  1. Lower shadow quality first; it is the setting most often tied to built-up-area slowdowns.
  2. Reduce heavy effects or volumetric options next, if your build exposes them.
  3. Lower the resolution scale before dropping overall quality presets.
  4. Close background applications, especially browsers and voice chat overlays.

Crash or stuck checklist

  1. Verify the game files through Steam.
  2. Update your GPU driver to the current version.
  3. Check the official community hub for known-issue threads before assuming a new bug.
  4. If a base edit reliably reproduces a crash, note the structures involved — that detail helps reports.

Report it where developers read

The official Steam community hub is where the developer reads demo feedback. A useful report includes your build version, hardware, settings and when the slowdown or crash happens. For what the preview includes, see the demo page and the demo walkthrough.

FAQ

FAQ

Common questions about this topic.

Why does the demo lag in built-up areas?

Community reports tie slowdowns to large bases with many structures and active terraforming machines; it is load-related feedback, not an officially documented rule.

Are there official performance settings documented?

No. The developer has not published performance guidance for the demo, so treat any detailed benchmark claims as provisional.

Does demo performance predict the full game?

No. The demo previews a game launching November 9, 2026, and optimization can change before release.

Where should I report a crash?

The official Steam community hub discussions, with your build version, hardware, settings and reproduction steps.