1 - 20 of 74 Works by Castelau
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Project Sunseeker (Improved Version) by Castelau
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types
29 Jun 2026
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Summary
It’s remarkably hard to work out where you are without a single map reference point to rely upon. Even worse, when all your preconceptions about the universe see themselves turned upside down and you're left without a point of reference for life itself.
Trapped in a ship orbiting a star on the wrong side of the galaxy, Shepard has to figure out a way to get home - now if only she knew why she was out here in the first place.First contact slow-burn shakarian AU with distant inspiration from "Project: Hail Mary", see authors note at beginning for full context.
**REWRITE OF AN EXISTING FIC**
Series
- Part 1 of A Point of Reference
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The Student by Castelau
Fandoms: Mass Effect - All Media Types, Mass Effect: Andromeda, Mass Effect Trilogy
02 Jun 2026
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2167 - Saren Arterius sources, recruits and takes on training one Avitus Rix for Special Tactics.
Or, badgered into taking on a student at long last, Saren grudgingly winds up with a government assigned best friend and it's maybe not the worst thing that's happened in either of their lives.
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The Longshot by Castelau
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types, Mass Effect: Andromeda
21 Feb 2026
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An elcor veterinarian is found brutally murdered at his own clinic. No motive, nothing to point towards his killer. It's up to Second Class Major Crimes Detective Castis Vakarian and his new partner - the newest addition to the Major Crimes team - to piece together both how and why someone would kill the beloved veterinarian before the rapidly cooling trail can be erased entirely. But if anyone does know why someone would harm the sweet-natured elcor, they're being kept quiet by fear, apathy or some combination of the two.
Only, the situation is set to become all the more complex as Castis' personal and professional lives are forced to collide explosively - and left with his reputation on the line twice, he finds himself betting pride, reputation and relationship on a longshot; that he can solve this one case. -
Icarus All Grown Up by Castelau for GrayWolph
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types
02 Nov 2025
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Summary
Maybe Icarus fell because he flew too close to the sun, but he'd have drowned just the same if he hadn't flown at all.
Some words, and the turian who said them, stick with Garrus both during and after his time on Omega, leading him to want to see the person who said them again.
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Raptor, Raptor by Castelau for NoisyNoiverns
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types, Mass Effect: Andromeda
31 Oct 2025
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On the comedown from a hard mission, Macen comes up with an idea to cheer Avitus up - a movie night with their best friends to make him feel better. The movie in question? Oh, just a classic little number involving some relatable protagonists, and we definitely don't mean the humans.
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Life Turns On A Dime by Castelau for daisydidntdoit
Fandoms: Mass Effect: Andromeda, Mass Effect - All Media Types
04 Sep 2025
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Prompt: A kiss... in a rush of adrenaline
An everyday excursion to bully kett goes sideways in the most entertaining way possible. Or alternately, Vetra really isn't having a vast amount of fun but Sara sure is.
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Unwanted by Castelau
Fandoms: Mass Effect - All Media Types, Mass Effect Trilogy, Mass Effect: Andromeda
03 Jun 2025
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Spending too much time cooped up with nothing to do but dwell on the past is never a good idea, but leaving his apartment may not have been Castis' best idea - not when he definitely wasn't expecting to wind up entertaining an unwanted guest.
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Good For Some-Nothing by Castelau for NoisyNoiverns, korble
Fandoms: Mass Effect - All Media Types, Mass Effect Trilogy, Mass Effect: Andromeda
15 Feb 2025
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Sometimes, what even the meanest bastard in the galaxy needs is his big brother. And more than that, someone who can help bring comfort to him.
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A Cold And Unfamiliar Home by Castelau
Fandoms: Mass Effect: Andromeda, Mass Effect - All Media Types
27 Dec 2024
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Home is where the heart is and unfortunately, that's very much not here.
A what-if coming off the premise that Macen Barro survives the arrival in Andromeda - only that isn't a story with a happy ending.
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(Mostly) Harmless by Castelau for korble
Fandoms: Mass Effect - All Media Types, Mass Effect Trilogy, Mass Effect: Andromeda
30 Sep 2024
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Summary
An overheard, misplaced comment has Macen doubting himself and pushes him to join in with his three closest friends as they go on a hostile environment combat training exercise. That snap decision may be one he'll come to regret, or maybe it'll be just what he needs.
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Seeing Another Sky by Castelau
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types
21 Jul 2024
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Summary
After the events of Project Sunseeker, the idea of leaving Earth again has Shepard on edge. Thankfully, Garrus knows how to solve that.
Series
- Part 8 of A Point of Reference
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Before The Alarm Goes Off by Castelau for korble
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types
16 Jul 2024
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Summary
Fill for the tumblr prompt "a kiss on a scar"
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Single-Sided Dice by Castelau
Fandoms: Mass Effect: Andromeda, Mass Effect - All Media Types
27 Jun 2024
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Summary
Single-sided dice: A die created to determine the result even when there's only one possible option.
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Sara's greatest challenge has always been coping with being lonely. But what else can she do but cope?
Written for SSC 018: Twins
Series
- Part 10 of The Places We'll Go
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Summary
Castis and Garrus have significantly more in common than they'd ever admit. Someone gets to compare them though and loves ever second of it.
Writen for Shrimp Skwad's SSC:017 - Come What May
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Summary
Under storming skies, sleep can be hard to come by for some.
Written for SSC016: When It Rains
Series
- Part 9 of The Places We'll Go
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Time Turns (for us, alone). by Castelau for NoisyNoiverns, korble
Fandoms: Mass Effect - All Media Types, Mass Effect (Comics)
14 Feb 2024
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Across time, there's always been a them- even before they were who they are now. Call them a universal constant, call it fate, it all amounted to the same in their eyes.
Or, five times Desolas Arterius needed Valis Abrudas and one time she saw that he saved her just as much as she saved him.
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Last Man Standing by Castelau
Fandoms: Mass Effect - All Media Types, Mass Effect Trilogy, Mass Effect: Andromeda
04 Feb 2024
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Summary
Teaching the unlovable and unloving to love is no mean feat and very much remains a group project. Thankfully, there's enough people willing to commit to make it happen.
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Avitus Rix has a long and slow journey to understand both how to love and be loved.Series
- Part 8 of The Places We'll Go
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Sometimes, Avitus Rix has too much heart for his own good. This time around, he's going to drag Macen down to hell with him though. Failing hell, how about Omega?
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Otherwise known as the pre-Andromeda Barrix mission fic we all wanted.
Series
- Part 2 of The Places We'll Go
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Hurry Hurry - or there'll be time to waste by Castelau
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types, Mass Effect: Andromeda
30 Nov 2023
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Summary
Sometimes, plans don't match up and learning to resolve conflicts is an acquired art.
Written for SSC011: Hurry Hurry, over on the Shrimp Skwad server.
Series
- Part 7 of Trashbag's No-Reapers AU
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Confidence Is A Complicated Concept by Castelau for korble
Fandoms: Mass Effect Trilogy, Mass Effect - All Media Types
19 Nov 2023
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Summary
Unexpected changes of plan and knocked confidences aside, one thing's certain, Saren knows exactly how to distract Nihlus from his woes.