odename: Gordon, also known as Half-Life 2D, is a two-dimensional Flash sidescroller shooter game made by Paul "X-Tender" Kamma and Sönke "Warbeast" Seidel. The game was produced on behalf of Nuclear Vision, and was distributed free of charge over Valve Software's Steam online delivery system as a promotional title for the then-upcoming Half-Life 2. The game has since been removed from Steam's storefront due to factors related to the developer's bankruptcy. The game started off as a fan project of Paul Kamma and Sönke Seidel, the concept being inspired by various Half-Life 2 advertisements. Soon after, the two started working on Codename: Gordon on behalf of Nuclear Vision. The company also presented the game to Valve, the developer team of the original Half-Life series, who later distributed the game through Steam.
Codename: Gordon
PC Big-Box · 2004 · NTSC-U · Shooter
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Live listings
Active tier · Sealed. Aggregated from eBay US. Refreshes every 6 hours.
What it's actually worth
The three-tier spread, verified comparable sales, and where this title sits inside its cohort. Live snapshot lives above in Pulse; this is the time-and-context layer.
The same game at three prices — Loose, CIB, and Sealed on one ruler. The scale is logarithmic: each gridline step is 10×, so the distance between bars shows the size of the jump between tiers.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
Why collectors care
The cultural context, the production lineage, the place this artifact holds in its console's history.
- First print documented
- No
- Regional / language names
- Half-Life 2D
Is what you're holding real
Documented variants, identifying marks, and the print-vs-reprint discriminator. Pick a variant to focus the walkthrough; the Companion can talk you through your own copy.
Production reference
No production variants are documented for this title yet. The identifying marks below cover the title's first-print and reprint signals across all tiers.
Production reference
No production variants documented for this title yet. Identification reads against the title's known print signals across all tiers.
No documented marks for this tier yet.
No documented marks for this tier yet.
No documented marks for this tier yet.
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