Frontline Protocol – Tactical PvE Strategy
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Hi everyone 
I'm an indie developer working on Frontline Protocol, a real-time strategy game with a unique blend of rts, deckbuilding and auto battler mechanics, and a strong focus on cooperative PvE gameplay.
This isn't your typical RTS:
Instead of controlling units directly, players influence the battlefield by playing cards. Every card you deploy brings instant effects – from spawning units, constructing buildings, placing towers, to launching tactical actions. Positioning, timing, and smart synergy between your three active decks is key.
Current State: Playtest on Steam
Wishlist on Steam and join Playtest for free
Control your army through over 300 cards: infantry, vehicles, towers, buildings, and powerful action cards.
1–4 online Multiplayer PvE Co-op
Jump into online Multiplayer battles with up to 3 friends. Share spawners, coordinate strategies, and specialize your decks for roles like defense, eco, support, or frontline pressure.
Once deployed, your units act autonomously – but their effectiveness depends on your deck structure, map control, and team coordination.
Earn Booster Credits and unlock card packs containing new units, action cards, and some items. Permanently improve select cards, invest skill points for meta-progression, and shape your long-term strategy. Create new specialized decks like infantry only, anti vehicle, eco buildings or what you want.
Take on dynamic PvE missions with modifiers like time limits or card restrictions. Complete them to earn Mission Coins and unlock exclusive tactical rewards from mission booster packs.
Add extra difficulty and earn rare rewards. Special Orders can be activated by the host to increase mission difficulty for all players – by limiting income, increasing enemy spawns or something else. The entire team receives a special loot if they succeed under these conditions.
Strategically boost rewards during missions. Deployment Plans are one-time tactical items drawn from mission booster packs. Use them during missions to gain extra Player EXP, Card EXP, or bonus loot – either per map or at mission completion. Choosing the right plan at the right time can multiply your rewards.
Stats:
Genre: Real-Time Strategy meets Deckbuilder and Auto Battler
Online Multiplayer: Cooperative PvE for 1–4 players
Card-Based Tactics: Spawn units, fire missiles, deploy towers, build economy
Multi-Deck System: Play with up to three customizable decks simultaneously
Booster Packs: Unlock new units, new action cards, and items
300+ Cards: Infantry, vehicles, support units, towers, buildings, and special actions
Shared Resources: Teamwide synergy through buildings and spawner sharing
Deck Progression: Permanently upgrade cards and build long-term strategies
Skill Tree: Earn XP and unlock passive bonuses like faster income or extra hand size
Missions & Objectives: Take on randomly generated missions with bonus rewards
Built for Co-op: Game design encourages collaboration and tactical communication
No Paywalls: All content unlockable through gameplay only
Dynamic Enemy Scaling: AI becomes stronger the longer you wait – pressure guaranteed
Replay Value: Constant deck experimentation, randomized missions, and tactical depth
🔗 Get More
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🌐 Official Website - 🎯 Auto Battler · 🧠 Deckbuilding · ⚔️ RTS · 🤝 Co-op
#rts #strategy #deckbuilder #cardgame #autobattler #multiplayer #retro #indie
