You can now experience Half-Life in a whole new way with a playable demo of the Valve-approved Codename: Loop.
Most Half-Life and Half-Life 2 mods add a fun new dimension to the esteemed FPS adventure series. Some upgrade the graphics; others rework the story with later technologies (such as Black Mesa). Few get the Valve seal of approval, however, remaining as free works on ModDb.
That’s what makes Codename: Loop – first revealed back in October 2022 – not just different, but enticing. Built in Unity, the demo features a portion of the early Half-Life level “Questionable Ethics” and support for additional maps. And in a shock development, the game will be listed on Steam at some point (hence the lack of “Half-Life” in the title).
The idea behind the game is simple: the G-Man has time-looped Gordon Freeman to assess his suitability for future missions.
This demo includes a single map, which is a small section of Questionable Ethics (adapted by Hezus), where we aim to demonstrate the majority of features currently included in Codename: Loop. However, there are many more things in this demo!
The ModDb listing for Project: Loop highlights the following features:
- Almost complete BSP support.
- Lots of player models.
- Developer Console with lots of useful commands.
- Subtitles (English only).
- All original Half-Life weapons (can be used in custom maps or spawned via console).
- Isometric, over the shoulder and (crappy) first person view (useful for map makers to do metal gear style vents, etc)
- All original Half-Life enemies, except for the Bosses and Alien-Controller (can be used in custom maps or spawned via console).
- For map makers, all enemies/npcs can be set to be allies or foes.
You can download Codename: Loop using the link below.
Download Codename: Loop – Questionable Ethics Demo – Mod DB
It’s probably worth visiting www.codenameloop.com to make sure you’re subscribed to all the project’s social media activity.
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Christian Cawley is the founder and editor of GamingRetro.co.uk, a website dedicated to classic and retro gaming. With over 20 years of experience writing for technology and gaming publications, he brings considerable expertise and a lifelong passion for interactive entertainment, particularly games from the 8-bit and 16-bit eras.
Christian has written for leading outlets including TechRadar, Computer Weekly, Linux Format, and MakeUseOf, where he also served as Deputy Editor.
When he’s not exploring vintage consoles or retro PCs, Christian enjoys building with LEGO, playing cigar box guitar, and experimenting in the kitchen.




