Solitary Echoes is a singleplayer modification for Half-Life. SE is set in the Aliens univers. The mod seeks to balance gameplay between Combat, Survival and Puzzles.

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We're happy to announce that a demo / playable teaser for Solitary Echoes will be released soon!

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se announcement

We're happy to announce that a demo / playable teaser for Solitary Echoes will be released soon!

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Just jump in, it's nice & cozy...


The demo will feature the mod's full training course for you to explore. You can learn all sorts of skills and get a taste of SE's different game mechanics, as well as it's game world, style and atmosphere.

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Flares can lighten up dark corners... sorta...


At the training course's end, you can visit the shooting range and have some fun with some of SE's guns - complete with unlimited ammo and spawn buttons for some of the Aliens.

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Have as much pew pew as you like.


The demo is currently undergoing closed beta testing from some of the finest minds the Half-Life editing scene has to offer and we're ironing out lots of bugs. There's no fix release date, but it's close, really close. Hope you're looking forward to getting a small taste of Solitary Echoes.

Here's some more impressions - enjoy.

Cheers, simbl for Team Lambda.

Post comment Comments
dikkun1688477850
dikkun1688477850 - - 8 comments

I'm always down for some Aliens content, awaiting eagerly for that demo!

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-sbl- Author
-sbl- - - 54 comments

Thanks! Hope to not disappoint! :)

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nonsense-me
nonsense-me - - 98 comments

Noice

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-sbl- Author
-sbl- - - 54 comments

:) Thanks

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SweetRamona
SweetRamona - - 5,113 comments

This looks awesome! 😺

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-sbl- Author
-sbl- - - 54 comments

Thank you Leela!

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Aynekko
Aynekko - - 665 comments

Great work

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-sbl- Author
-sbl- - - 54 comments

Thank you!

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milkmanbeanz
milkmanbeanz - - 76 comments

This looks SO cool, the colors used are awesome!

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-sbl- Author
-sbl- - - 54 comments

Thank you so much! :)

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PurpleRhino83
PurpleRhino83 - - 64 comments

Cool project. Always wanted a gldsrc Alien game. Going by the gif, will all the xenos behave like bullsquids? Are there going be any human enemies?

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-sbl- Author
-sbl- - - 54 comments

There's Xenomorphs based on Bullsquid, but also Facehuggers, Runners, Praetorians and Queens.
There's also plans for humanoid enemies, but nothing worth showing yet.

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Gloveman
Gloveman - - 19 comments

I liked the demo you sent me. Didn't know it was Aliens till i got to the shooting range lol. I LOVE the flares and the blowtorch.

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