Roblox Systems Developer
I build the systems your game runs on. Server-validated, built to scale, and shipped to millions of players.
Combat, gun frameworks, inventories, movement, procedural generation, data saving and anti-exploit. Scripting only — I write the code, not the art.
Selected work
11 projects
Whole games built solo, from the first script to launch.
Meteors crash down across ten zones and everyone races for them: carry one home and it pays every second. UFOs chase you and beam up what you carry, bats and bear traps knock loot out of other players, and a server-side anti-cheat watches every move. Rebirths, hourly meteor showers, gifting, badges, a Robux shop and a full admin panel, all saved to one profile.
Try it on Roblox
Roll a snowball across six zones and everything you touch sticks to it, then feed it into an animated Snow Press that crushes it into cash. Rare Frozen, Golden and Rainbow items fill a collection index, Starfall and Golden Blizzard events change the weather and music, and treadmills, rebirths, daily quests and rewards, global leaderboards, a Robux shop and an admin panel round it out, all saved to one profile.
Try it on RobloxHit detection, projectiles and damage, decided on the server.
The client only reports when it fired and where it was aiming. The server simulates every bullet itself, then rewinds each target back to where it stood when the trigger was pulled.
A box sweeps with the punch and damages every rig it overlaps, once per swing. The red volume in the clip is the actual hitbox rendered on screen, so the thing you are watching and the thing being tested are the same object.
Controllers and creatures that move without canned animations.
There is no walk animation anywhere in it. Eight legs pick their own footholds off the terrain and the body rides on top, so it handles slopes and steps it has never seen before.
No animation track anywhere in it. The head picks the route and every segment behind repeats it a moment later, so the body banks into its own turns and folds over the slabs it climbs. The grass it crosses stays flattened behind it.
Take off and the character banks into its own turns with a trail behind it, then drops back into a controller that still handles grabbing, carrying, throwing and going limp. Both windows are separate clients in the same session.
Suspension, grip and gearboxes solved in code, not constraints.
Each corner casts down, springs against whatever it finds and pushes back with one force, so suspension, grip and body roll all come out of the code. Five gears that never hunt, a rear end that steps out under the handbrake and lays rubber, hill-hold, flip recovery, and a tuning file per car so the SLS drives like an SLS.
Twin engine start, torque, ground effect, and autorotation if you lose power. Working PFD, ND and moving map in the cockpit, doors, boarding, crashes, weather and wind, and a voice intercom. Press a key and one flies in and lands next to you. PC, mobile and controller.
Try it on RobloxInventories, saving, economies, progression.
A whole base loop in one place: claiming, two currencies, four crate tiers on real timers, item drops, and a base you can recolour down to the carpet. Every value is decided on the server and written to storage, so a twelve-minute crate keeps counting while you are offline and the base comes back exactly as you left it.
Units bought from the shop or won on the spinner sit on your plot and pay out every second, climbing from six dollars to five thousand across the clip. Rebirth, rarity tiers, a free-spin timer, codes, an index and a diving zone with its own oxygen meter all read and write the same saved profile.
Live on Roblox
Built alone, start to finish
Drag to aim and bend the ball round the wall. Power, curve and placement all come out of the one drag, so the same shot never repeats twice. You can switch to the keeper and dive to save, collect players and upgrade their stats, and put a score on the global leaderboard.
Play it on Roblox08 areas
Hit detection, projectiles, abilities and damage pipelines that hold up under load.
Custom character controllers, traversal, vehicles and physics-driven motion.
Creatures and rigs that place their own feet instead of playing a canned loop.
Items, stacking, trading, shops and currency, with every transaction checked server-side.
Session-locked profiles, migrations and rollback. No dupes, no wipes, no lost progress.
Seeded worlds, dungeons and layouts generated at runtime and streamed in as needed.
Remote validation, rate limiting and sanity checks that catch abuse without punishing lag.
I make your interface work — state, input, scaling, data binding. You supply the design, I write the code behind it.
Scripting only. I do not build maps, model 3D assets or design interfaces — hand me the assets and I will make them work.
Robux only
Robux only. Every price below is a starting range — the real number depends on the job.
5,000 – 10,000R$
A single self-contained module, or fixing something in a codebase that already exists.
10,000 – 20,000R$
A full working system built to your spec — combat, inventory, movement, saving.
20,000+R$
Several systems working together, or one with real technical depth behind it.
Scope decides the price. Send me what you need and I will quote it properly before either of us commits.
Get a quoteTell me what you need built. I reply within 12 hours.
Discord — @hermabs