Metal Factions

Spring EngineGames

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First you need to download the Spring engine to play this game.

Games for Spring are ".sd7" or ".sdz" files. To install this files move them into (Unix) ~/.spring/games
or (Windows) "My Documents\My Games\Spring\games".
Use the "Reload maps/games" option from the "Tools" menu in SpringLobby.


File Information

Title / Version Metal Factions v1.142
License Freeware / Free
Filename metalfactions-v1.142.sdz
Filesize 35.66 MB
Date 08/04/2019 - 16:08
Changed 08/11/2019 - 01:29
Publisher / Author raaar (Uploaded by raaar)


Far into the future, different factions fight throughout the galaxy for control of resources using armies of advanced machines...

"Metal Factions" is TA-inspired game that runs on the Spring RTS engine and has four original factions: AVEN, GEAR, CLAW and SPHERE.

for more information, check the website at

REQUIRES SPRING VERSION 104.0.1-1327-g315b3fd maintenance or later

(to get the latest recommended game and engine versions, check the MF battle rooms on the official server)

2019/08/10 ------------------ NOTES v1.142 ----------------------

- same as the previous version, but released to try to work around a sychronization issue on multiplayer battles
(deployed to springfiles only)

2019/08/10 ------------------ NOTES v1.14 ----------------------

- fixed GEAR "Toaster" still sometimes not firing after opening up

2019/08/08 ------------------ NOTES v1.13 ----------------------

--- Balance / Mechanics

- fixed cloak delay after building,firing,etc. not being applied (set to 5s)
- fixed cloak not draining energy
- units will now decloak when capturing, taking damage and moving on water

- GEAR "Igniter" no longer tries to target air units
- fix some units not completing their aim animation and not firing (units with special aim poses and static defenses with pop-up and open animations)
- increased range and cost by about 5-10% on AVEN "Trooper", "Warrior", "Bold" and "Wheeler"
- increased range and cost by about 5-10% on GEAR "Aggressor", "Box", "Instigator" and "Raider"
- increased range and cost by about 5-10% on CLAW "Dizzy" and "Grunt" and now it has lasers on both arms
- increased range and cost by about 5-10% on SPHERE "Bit" (slightly reduced speed), "Crustle" and "Slicer"
- made AVEN EMG weapons more precise

- fixed air transports not lowering their altitude to load/unload units
- fixed wind generators still generating some energy while partially reclaimed

2019/08/05 ------------------ NOTES v1.12 ----------------------

- fixed problem which prevented several aircraft from firing
- improved CLAW "Spotter" model (rounder)
- slightly increased the model size for GEAR "Harasser" and SPHERE "Trike"
- modified AVEN "Geothermal" model slightly

2019/08/04 ------------------ NOTES v1.111 ----------------------

- fixed an error on the custom formations widget which was triggered by shift-queuing multiple line formations

2019/08/04 ------------------ NOTES v1.11 ----------------------

--- Engine

- changed the recommended engine from "104.0" to "104.0.1-1327-g315b3fd maintenance" or later
(lobby clients should auto-download the correct version after joining the nebula hosts on the official server)

--- New units

- added GEAR "Igniter" : level 2 Incendiary Raider Vehicle
- added SPHERE "Atom" : level 2 Energy-intensive Fast Bomber Sphere
- added CLAW "Pike" : level 2 Heavy Fire Support Vehicle
- added large fortification wall sections for all factions (twice as big, 4x HP and build time, 8x cost)
- added large fortification gate sections for all factions
(gates are slightly weaker and more expensive than the big walls, but can be lowered to let units through)
- added level 2 Energy-to-Metal converter buildings for all factions : each costs 600M and converts up to 300 E/s to 2.5 M/s

--- Balance / Mechanics

- increased turret turn rate for AVEN samson, centurion, and many other units
(short ranged units have higher turret turn rates relative to longer ranged units, with the exception of the ones which fire L missiles)
- make mobile units adjust their aim more frequently to more efficiently track targets when maneuvering
- evened out the range for many units with two weapons with slightly different ranges mounted on the same turret/torso to avoid issues
- slightly increased the precision of AVEN "Guardian" and GEAR "Punisher"
(also made the barrels a bit longer to highlight their relatively long range)
- removed inaccuracy on long range plasma cannons when targetting moving units (too random)
- fixed GEAR raider form commander's missiles not firing when it's building drones
- fixed some units with depth charges trying to hit aircraft
- AVEN "Twister" is more likely to use both weapons against air targets and chase them when patrolling

- l2 advanced metal extractors have more HP but slightly increased cost
- l2 exploiter metal extractors are bigger, tougher and have 3.3x extraction multiplier instead of 2.5x, but drain 180 E/s and are more expensive
- radars and other energy-consuming units no longer get disabled for a few seconds after they're built if the player has enough energy
- l2 metal extractors are now disabled if the energy store falls below 800

- fixed AVEN "Kodiak" and hovercrafts' wreckage not blocking movement
- fixed most small units always leaving the full wreckage regardless of how brutally they were destroyed

- reduced the delay between building drones from 4s to 2s
- reduced build time for light drones by 20% and increased build time for medium drones by 20%

- adjust balance to reduce cost of weapons which are locked to high-trajectory mode and don't have tracking projectiles
- increased damage, HP and firing rate of AVEN "Merl", and also improved the 3D model
- increased range of CLAW "Massacre" from 1600 to 2100 and slightly increased reload time
(these changes offset the previous cost reduction)
- increased maneuverability and dmg/s of CLAW "Boomer" variants, but reduced range
- modified GEAR heat rays' damage type from M to H and adjusted the unit costs (about +15%)
- halved the energy cost of wall sections (it's 5x the metal cost, same as the other units)

--- Animations / Visuals

- units glow green with intensity depending on how much HP% per second they're regenerating
- fixed CLAW "Grinder" form commander rotating its barrels out of sync with the fire rate
- fixed laser firing point and modified barrel on basic/builder GEAR commander forms
- slightly modified GEAR "Proteus" model and fixed the build picture
- slightly improved textures on lots of AVEN units
- replaced an annoying sound when giving orders to some of the light vehicles
- improved model of the flying sphere factory and "Gazer"

--- UI / Widgets

- added widget that allows selecting a subset of the currently selected units of the same type