About Simple Underground
From ficsit.appAdds and elevator and a big plane in the underground.
<style> .multiplayer-banner { background-color: #4caf50; border-top: 4px solid #000; border-bottom: 4px solid #000; margin: 20px 0; padding: 10px 0; display: flex; align-items: center; justify-content: center; gap: 15px; width: 100%; } .multiplayer-text { color: #ffffff !important; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; font-size: 1.1rem; text-shadow: 2px 2px 0px #000; } .multiplayer-sub { background: #000; color: #4caf50 !important; padding: 2px 10px; font-size: 0.8rem; font-weight: bold; text-transform: uppercase; border: 2px solid #fff; } .thumb-icon { font-size: 1.5rem; filter: drop-shadow(2px 2px 0px #000); } </style>
<style> .mod-container { --sf-gold: #f6ad55; --sf-under: #48bb78; --sf-deep: #2d3748; --sf-bg: #2d2d2d; --sf-border: #000; max-width: 850px; margin: 20px auto; background-color: var(--sf-bg); color: #e0e0e0; padding: 30px; border: 4px solid var(--sf-border); box-shadow: 10px 10px 0px var(--sf-border); } .mod-container h1 { color: var(--sf-under); text-transform: uppercase; text-align: center; border-bottom: 3px double var(--sf-under); padding-bottom: 10px; margin-bottom: 25px; text-shadow: 2px 2px #000; } .under-banner { background: linear-gradient(90deg, #22543d 0%, #48bb78 100%); color: #fff; padding: 15px; text-align: center; border: 2px solid #000; margin: 20px 0; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin: 25px 0; } .feature-card { background: #1a1a1a; padding: 15px; border-bottom: 4px solid var(--sf-under); } .feature-card b { color: var(--sf-gold); display: block; margin-bottom: 5px; }
.command-panel { background: #1a202c; border: 2px dashed var(--sf-under); padding: 20px; margin: 25px 0; } .cmd-item { margin-bottom: 12px; font-size: 0.9rem; } .cmd-code { background: #000; color: var(--sf-under); padding: 2px 8px; font-family: monospace; font-weight: bold; }
.mod-container img { width: 100%; border: 4px solid #000; display: block; margin: 15px 0; }
.aquila-footer { --sf-bg: #1a1a1a; --sf-border: #000; --sf-gold: #f2c94c; --discord: #3b4e8d; --patreon: #ff6058; --steam: #f2f2f2; --pix: #f2d600; --paypal: #249ce2; --youtube: #ff0000; max-width: 850px; margin: 40px auto; background-color: var(--sf-bg); padding: 30px; border: 4px solid var(--sf-border); border-top: 6px solid var(--sf-gold); box-shadow: 10px 10px 0px var(--sf-border); text-align: center; } .aquila-footer .btn-container { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; } .aquila-footer .full-btn { grid-column: span 2; } .aquila-footer .social-btn { display: flex; align-items: center; justify-content: center; padding: 12px; border: 3px solid #000; box-shadow: 4px 4px 0px #000; text-decoration: none; transition: transform 0.1s; } .aquila-footer .social-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0px #000; } .aquila-footer .btn-text { color: #ffffff !important; text-transform: uppercase; font-weight: bold; font-size: 0.9rem; line-height: 1.2; } .aquila-footer .discord { background: var(--discord); } .aquila-footer .patreon { background: var(--patreon); } .aquila-footer .youtube { background: var(--youtube); } .aquila-footer .steam { background: var(--steam); } .aquila-footer .steam .btn-text { color: #d35400 !important; } .aquila-footer .paypal { background: var(--paypal); } .aquila-footer .sub-text { display: block; font-size: 0.65rem; opacity: 0.9; font-weight: normal; margin-top: 4px; text-transform: none; } </style>
Simple Underground
Unlock a massive, flat building plane beneath the world. Perfect for sprawling train hubs, clean logistics layers, and expansive belt highways.
Seamless transit between your surface factory and the underground.
A perfectly level plane at Z = -24450 for stress-free building.
System Commands (Press Enter)
Highlights
From source dataGame versions
Built for Satisfactory >=491125.
Footprint
Rated a light load on a server.
Dependencies
Needs 1 other project installed alongside it.
Simple Underground on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Satisfactory servers. We download it from ficsit.app, place it, and restart the server.
- Server side
- Required on the server
- Server load
- light
- Smallest plan we suggest
- Satisfactory — 8 GB (8 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.0.10, released 2026-06-07
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.0.10 | 2026-06-07 | >=491125 | n/a |
| 1.0.4 alpha | 2023-11-16 | >=264901 | n/a |
Run Simple Underground on a Satisfactory server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogVehicles & ships
Cars, boats, aircraft, ships and other things to drive or fly.
Runs on your server
From source side supportficsit.app lists Simple Underground as required on the server. Check its ficsit.app page to see whether players need it too.
Compatibility
- Game
- Satisfactory
- Runs on
- Serverrequired on the server
- Game versions
- >=491125
- Requires
- 1 other project installed alongside it.
Verified at the source
- ✓ficsit.appOfficial listing, checked 2026-10-15Open ↗
- ✓AuthorAndre Aquila, as published on ficsit.app
- ✓LicenseNot published by the sourceFree
