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 v0.90
License Freeware / Free
Filename metal_factions_v0.90.sdz
Filesize 27.12 MB
Date 11/28/2015 - 07:51
Changed 11/30/2015 - 00:13
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 a game for the spring engine with four original factions: AVEN, GEAR, CLAW and SPHERE.

for more information, check the website at


************************** PATCH NOTES ****************************

2015/11/29 ------------------ NOTES v0.90 ----------------------

--- balance / mechanics

- slightly reduced AVEN "Stalker"'s HP and missile range and made it slightly cheaper
- Increased nano towers' build range from 250 to 300 and slightly increased cost
- slightly increased terrain slope tolerance for most robots and vehicles but made them lose a bit more speed when climbing steep slopes

--- UI

- commanders no longer have HP hidden from enemy players
- fix issue with the nano auto-patrol widget introduced in the previous patch
- make sure F4 key toggles metal map view, which highlights metal zones
- added widget to also highlight geothermal spots when in metal map view (by Niobium)

2015/11/28 ------------------ NOTES v0.89 ----------------------

--- new units

- added CLAW "Havoc" : Heavy Bomber (level 2)

click here for unit details

--- balance / mechanics

- SPHERE "Spitfire" stronger but more expensive
- AVEN "Gryphon" slightly slower but increased HP and cost
- level 2 heavy ground attack aircraft are a bit stronger and more expensive
- SPHERE "Meteor" and AVEN "Icarus" drop bombs instead of rockets and are now labelled as "Heavy Bombers"
- CLAW "Boomer" rockets no longer collide with friendly units
- GEAR "Voodoo" can now target air units

- increased base energy income from 30 E/s to 60 E/s
- changed starting resources and storage from 1000M + 1000E to 1500M + 4000E to speed up early game
- fix wind generator income (boost given on v0.8 wasn't being applied), and added a bonus of up to 20% more income on higher ground
- increased durability and slightly increased cost of wind generators, solar collectors and tidal generators
- "alive" enemy units can no longer be reclaimed
- friendly units are now progressively reclaimed

- fixed GEAR "Canister" and "Eruptor" setting ground on fire when canceled or reclaimed
- reduced fire burn damage to 180(M) over 6s (still 30 dmg/s but lowered duration from 10s)
- increased fire area damage per second from 5(H) and 10(H) flat damage to 10-20(M) and 30-60(M) for small and big fireballs, respectively
(note that fireball damage stacks, unlike the burn damage)
- increased cost of GEAR "Eruptor" by 30%

- increased the dmg/s of AVEN "Omega Form" commander's weapons by about 15% on the EMG and 40% on the disruptor
- commanders wreckage metal is halved if killed by friendly fire more than 20s since last damaged by an enemy to prevent free metal exploit

- reduced paralyze max stun time from 10 to 6s but scale paralyze damage with target's missing health % (up to 200%, but doesn't affect the normal damage fraction)

--- AI : MFAI

- fixed metal spot detection (the previous algorithm could ignore spots in some cases!)
- improved AI compatibility with metal maps
- map data is only loaded once and shared by all MFAI instances
- AVEN uses "Kodiak" vehicles properly now
- avoids building level 2 plants if low on energy
- fix a situation where all AI's builders would be all be assigned to specific tasks and skip the standard queue
(this could lead to situations where it delayed building several plants, including level2 for too long or not build them at all)
- fixed some issues with AI not morphing its commander
- fixed AI builders getting stuck trying to build structures on places they can't reach

--- UI

- tooltip shows energy income for all energy generators when navigating the build menu
- nano-tower auto-patrol widget only queues patrol after 1 second idle to avoid overriding shift-queued commands given while being built

--- other

- changed the "on-fire" sound effect and burn animation slightly
- fix a bug in the gadget that manages air transports' speed
- added tip text to the AVEN advanced vehicle plant to remind players that it can build mobile fusion reactors
- changed aircraft bomb trails
- modified light cannon explosion sounds to be less annoying