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M4A1 Girls Frontline - New Character
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M4A1 Girls Frontline - New Character

por Aerniusvv0.9.2

Adds a new character "M4A1" from GFL to STS2. Have 5 Animations, spawn Dummy Bodies to fight for you.

Creado

8 abr 2026

Actualizado

22 abr 2026

Ver en Nexus Mods

Descripción

Esta descripción la proporciona el autor del mod en Nexus Mods en inglés.

Please Check Post for any future update preview!



Currently not compatible with Beta Branch 0.104


Compatible with Main Branch 0.103.2



won't be updated for a while, working on assets

Description
#Disclaimer: This is my first mod! Might be buggy, and pretty much is unbalanced on its current state! This is a casual project, so I might not maintain this project for a long time and will release the github repo later on! 

This mod adds a new character M4A1 from GFL 1 to STS2, her main mechanic is summoning/calling in Dummy Bodies (clones) of herself. The playstyle is pretty much if you mix the Silent, Necrobinder, and the Defect into one. Much of the visual assets (such as the card arts, icons) are still placeholders for now.

Supported Localization:
-Eng
-Zhs/ Simplified Chinese (MTL)
-Kor (MTL)

Installation instructions
Download the .zip and place the extracted files onto "\mods" folder on your game directory.

Main features
This mods have around:

  • 60+ Cards, including 2 multiplayer related cards
  • 13 Personal Relic (that might be unbalanced)
  • 3 Types of Dummy Bodies each have their own (simple) mechanic
  • 1 Idle animations, 1 Attack animation, 1 Hit animation, 1 Cast/Power animation,  and 1 on Death animation. All animations are not using GFL, because of certain technical difficulties, I rerig and reanimate it.
  • Custom health bar with partition system.
  • Several new power/keywords mechanic.
Animation Previews
  • Idle
Slay the Spire 2 mod screenshot
  • Firing (Attack)
Slay the Spire 2 mod screenshot
  • Reload (Cast/Power)
Slay the Spire 2 mod screenshot
  • On Hit
Slay the Spire 2 mod screenshot
  • Ded
Slay the Spire 2 mod screenshot
*a bit janky yeah

Dummy Body Mechanic:
Acts similarly to Osty by adding layers of temporary health from spawned Dummy Bodies (clones). player max HP will change depends how many Dummy Bodies is active on the scene (base cap 4, up to 8 using card effect or relic). Dummy Bodies will attack by the end of player(s) turn, damaging 2 points to random enemy while the hit will depends on stacks of Fire Team (will be elaborated later) which will be able to be gained from cards or other means. That feature is similar to the Defect end of turn lightning attacks. Player would also be able to have Dummy Bodies attack in their turn by playing certain cards.

there are 3 types of Dummy Bodies:


  • Assault type: will attack on player turns if the player plays bullet chips (similar to shiv but for this character), 12 HP at base.
  • Bulwark type: will give player blocks for each blocks gained (similar like dexterity, might be OP), 18 HP at base.
  • Sapper type: by each turn will give 3 Marks (debuff to all enemy. each stacks give fixed bonus dmg, consumed on use), 8 HP at base.
Fire Team Mechanic:
First of all on each attacks card used a stack of Fire Team will be consumed and will deal fixed 3 points spills attack to all enemy. If unused by turn end, Fire Team will be used as the counter for how many each Dummy Bodies will attack by the end of the turn (base formula is: FireTeam/2) and will be consumed. If Fire team is zero then Dummy Body will not attack. If there is no Dummy Body then the stack wouldn't be consumed. Fire Team stacks might be gained from using or discarding certain cards. 


Other power:

  • Suppressed: debuff to enemy, on turn end will deals 2 fixed damage as long as stacks still persist. 1 stack will be consumed per turn. If an enemy have 5 or more stacks of Suppressed, will gain Pinned by next turn.
  • Pinned: By next turn after obtaining Pinned and for as long as this debuff status is exist, enemy will lose 1 strength. Carries over.
  • Contingency: If cards with this canonical keywords is discarded will get fixed amount of Fire Team.
  • Other Stuff.

Planned Contents
*If I don't forget I ever did this
  • Rest Sprite, Multiplayer Rock, Paper, Scissor (Right now using the Silent's as a fallback). 
  • Visuals/Art for UI Icons, and Relics, except cards. 
  • Card roster and Mechanic rebalancing.
  • Character Sprite -> currently working
  • Card Art (probably will just use GFL assets, time will tell if I am motivated enough to draw).
  • GFL-themed enemies/elites/boss that utilize similar mechanic. (actually no promise, since this might be too much commitment.)
  • GFL-themed ancients.

Current Setbacks
  • I figured to get spine runtime to work now. this optimize the size from 42MB -> less than 2MB! I can't get the game to read Spine Binary/Json/.Skel export to work for some reason and ended up have to turn my animation into Frame by Frame PNG utilizing Base Lib Node2D (thank you really!) -> but unfortunately this causes each anims file to become big.... Right now I have no plan to fix it, because 1. I am not a good coder. 2. I don't want to mess the code base
  • on log: Tried to pop model CARD.M4A1TACTICALWAIFU-FULL_AUTO from stack -> API limitation, won't effect gameplay. the error happened because I create a custom anim queue that sync M4A1 anim with its hit counter, causing intended delay which confuses the internal bookeping of the game.  there is currently no reactive power that ask what sort of specific card currently played on top of the stack. well this is in the scope of this mod, and won't affect any other character be it vanilla or modded since non-M4A1 character will skips the anim queue entirely.
Requirements
  • Base lib 3.0.9 or newer for Main Release.
  • STS 2 Main Release

Credits:
Mica team - For GFL IP owner and assets of the character sprite.
Alchyr - For baselib, and wiki documentation + project template.
Aernius (Me) - Rig, Animations, and placeholder asset.

Nacklavee, Igor, Acum, Aquatech - for Private playtesting and feedback

Disclaimer: This is a non-commercial fan-made modification (Mod) created for entertainment and learning/educational purposes only. The creator of this Mod is not affiliated, associated, authorized, endorsed by, or in any way officially connected with MICA Team (Sunborn Network Technology Co., Ltd.), Shanghai Hode Information Technology Co., Ltd., or any of their subsidiaries, affiliates, or stakeholders.
All original intellectual property, including but not limited to 'Girls' Frontline' (少女前线), characters, names, imagery, trademarks, and lore, are the exclusive property of their respective owners (MICA Team/Sunborn).
The code and original assets specifically created for this Mod are the property of the Mod author. No copyright infringement is intended. If you are a rights holder and have concerns, please contact me for immediate resolution of take down request.

AI use scope: AI agent is used for debugging and answering questions when I don't understand how to implement certain feature I want, while coding is a mish mash of referencing base game structure and my understanding of it. No art is generated with AI.