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 v1.46
License Freeware / Free
Filename metalfactions-v1.46.sdz
Filesize 39.72 MB
Date 12/02/2020 - 00:47
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 "104.0.1-1553-gd3c0012 maintenance" or later

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

2020/12/01 ------------------ NOTES v1.46 ----------------------

--- new units

- GEAR "Rager" : level 2 cloakable armored fire support robot

--- Balance / Mechanics

- all lasers, heat rays, energy bolts and miniguns get +80 base range when firing at air units specifically
(it only applies after the target has been acquired and reverts immediately once it dies or gets out of range)

- slightly reduced the range of the 360º weapons on level 2 fighter aircraft
(the evaluation formula was adjusted to increase their cost a bit so they end up about even)
(they no longer outrange the forward weapons even if upgraded)

- CLAW miniguns are slightly more efficient at hitting small strafing air targets
- CLAW big railgun projectiles now keep going past their max range and have a slight arc to their trajectory
(the visual changed slightly)

- GEAR "Big Bob" now has a heavy missile launcher and has its 3 weapons with 750 range, but is about 10% slower and 30% more expensive
(its cannon now explodes mid-air vs air targets)

- GEAR "Infernal Form" commander and CLAW "Nucleus" now have perfect accuracy
(this is a workaround to avoid an issue where the shots would explode mid-air on high trajectory mode)

- increased GEAR "Moe" range and cost by about 10%

- GEAR "Knocker" is bigger and tougher and has H dmg type cannon with 420 range (down from 620)

- GEAR "Titan" gets slightly bigger and tougher (+HP, range, dmg/s), but also slower and more expensive

- reduced GEAR "Blaze" and "Flareon" heat ray beam times from 1.3s to 1s (this raises their price by about 4%)
- reduced GEAR "Blaze" range from 1000 to 960 and reduced cost by about 5%

--- UI / Visual

- renamed "PLANT" build tab to "FACTORY" and renamed the most factories as well
- improved glow effects on most projectiles
- modified aven disruptor cannon projectiles
- improved the cannons on most GEAR 3D models
- slightly improved SPHERE Helix and Screener models
- fixed error messages related to AI using custom strategies with broken morph definitions
(a warning message to allies is shown instead)

--- AI

- custom strategies allow using a custom upgrade list instead of the pre-built ones
- lowered the enemy threat estimation thresholds (AI less scared to attack)
- enemy threat estimation changes with measured efficiency more sharply
- main attack force prioritizes engaging enemies near its base
- L2 builders are a bit less likely to get distracted assisting other builders