Door Kickers: Action Squad is an old-school side-scrolling action game that drops you into the boots of a SWAT trooper in Nowhere City USA. Kick down doors, clear rooms, rescue hostages, and take down the criminal syndicate one mission at a time. This guide covers the core gameplay systems and links to our dedicated pages for deeper strategy. If you are just starting out, the Beginner Guide will teach you the controls and the core mechanics in under 10 minutes.
Gameplay Basics
Controls, objectives, and the core loop every operator must master
Core Controls
- Move, aim, and shoot with fluid twin-stick-style control
- Breach doors to stun enemies and create openings
- Crouch behind cover to reduce incoming damage
- Switch weapons instantly instead of reloading in a pinch
- Use tactical items: flashbangs, breaching charges, medkits
Mission Objectives
- Primary: Eliminate all hostiles in the area
- Secondary: Rescue hostages without harming them
- Bonus: Complete under time limit or with high accuracy
- Earn up to 3 stars per mission to unlock classes and gear
- Replay missions with better loadouts to max out stars
Classes
6 unique SWAT operatives — each with distinct abilities and playstyles
Assault
Balanced all-rounder
Breacher
Door smashing specialist
Shield
Team tank and protector
Recon
Stealth and speed
Sniper
Long-range precision
FBI
Tactical equipment expert
The Assault class is your starting point — a balanced trooper with no major weaknesses. As you earn stars, you will unlock the Breacher for aggressive entry, the Shield for tanking damage, the Recon for speed and stealth, the Sniper for long-range dominance, and the FBI class for advanced tactical equipment. Choosing the right class for each mission type is the key to earning 3 stars consistently. Our Best Classes tier list ranks every operator and tells you exactly which ones to unlock first.
SEE FULL CLASS TIER LIST, ABILITIES & RECOMMENDED WEAPONSWeapons
60+ weapons across 4 categories — find the right tool for every room
Assault Rifles
Versatile mid-range workhorses
Shotguns
Devastating close-quarters power
SMGs
High rate-of-fire room clearers
Pistols
Reliable backup sidearms
Every weapon in Door Kickers: Action Squad has distinct stats for damage, rate of fire, range, accuracy, and magazine size. Assault rifles are the safest pick for most missions. Shotguns dominate tight corridors but fall off at distance. SMGs spray bullets fast but burn through ammo. Pistols are your lifeline when your primary runs dry. Weapon choice should match your class and the mission layout. The Weapons Guide breaks down every firearm with damage tables and recommended pairings.
VIEW COMPLETE WEAPON STATS, COMPARISONS & BEST PICKSLoadouts
Optimized gear combinations for every tactical scenario
Room Clearer
Built for fast, aggressive entry into hostile rooms. High damage output with mobility to push forward.
- Breacher class for door-breaking speed
- Shotgun or high-DPS assault rifle
- Flashbangs for multi-enemy rooms
Turtle
Maximum survivability for hard missions and Nightmare difficulty. Trade speed for tanking ability.
- Shield class with heavy armor
- Pistol for close-range backup
- Medkits instead of flashbangs
All-Rounder
The safe choice when you do not know what a mission will throw at you. Jack of all trades.
- Assault class as the base
- Balanced assault rifle
- Mixed tactical item loadout
Missions
84 action-packed missions across multiple acts — here is how they are structured
Act I — Urban Warfare
Introductory missions teaching basic mechanics. Street-level combat in apartment buildings and warehouses. Expect standard enemies with low armor.
Act II — Industrial Zone
Larger maps with environmental hazards. Enemies start carrying better weapons and using cover more effectively. Hostage rescue becomes critical.
Act III+ — Syndicate HQ
Elite enemies, boss encounters, and Nightmare difficulty unlocks. Precision and loadout optimization matter more than ever.
Enemies
Know every hostile in Nowhere City before you kick the door
Basic Grunts
Low threat, predictable
Armored & Shield
Bullet sponges
Shotgunners
One-shot killers
Bosses
Multi-phase nightmares
Understanding enemy behavior is half the battle. Shotgunners are your highest priority target — their spread damage is lethal at close range. Shield bearers block frontal damage and require flanking or explosives. Armored enemies absorb bullets unless you aim for the head. Boss encounters demand specific loadouts and add management.
READ FULL ENEMY GUIDE — TYPES, BEHAVIORS & COUNTERSNightmare
The ultimate challenge — only for operators who have mastered everything else
Nightmare difficulty unlocks in Act IV and represents the ultimate test of your skills. Enemy health and damage are increased, ammo and health pickups are reduced, and every room demands the same precision you would bring to a boss fight. Nightmare is designed for co-op, but elite solo players can conquer it with optimized loadouts and memorized spawns. Check out the full review to see if the game is right for you before you commit to the grind.
Harder Enemies
+50% health, +40% damage, faster movement, and more enemies per room.
Scarce Resources
Fewer ammo drops, fewer medkits, and tighter bomb timers force perfect play.
Best Classes
FBI and Shield dominate. Extra items and frontal protection are everything.
Co-Op
Local and online multiplayer — teamwork makes the breach work
Door Kickers: Action Squad supports both local split-screen and online co-op for two players. Co-op changes the entire tactical equation — one player can breach while the other covers, classes can complement each other, and revive mechanics let you recover from mistakes that would end a solo run. Our Co-Op Guide covers the best duo combinations, communication rules, and breach protocols.
Best Duo Combinations
- Shield + Sniper — Tank protects while sniper picks off threats
- Breacher + Assault — Two heavy hitters for maximum DPS
- Recon + FBI — Speed and gadgets for stealth operations
Communication Tips
- Call which door each player will breach
- Coordinate flashbang throws to avoid wasting them
- Plan revive positioning before entering dangerous rooms
Community Resources
Official channels and community hubs for matchmaking, mods, and updates
Steam Community Hub
Official Steam community with guides, discussions, screenshots, and the Workshop for mods and custom missions.
VISIT HUBOfficial Discord
Join the KillHouse Games Discord for matchmaking, developer updates, work-in-progress content, and direct community chat.
JOIN SERVERReddit Community
r/ActionSquadGame is the main player-run subreddit for tips, mission help, strategy discussion, and community content.
VISIT SUBREDDITFAQ
Answers to the most common beginner questions about classes, weapons, co-op, Nightmare mode, and unlocking content.
READ FAQIS IT WORTH YOUR TIME?
Door Kickers: Action Squad is a genuinely fun tactical side-scroller with surprising depth. The pixel art style hides a challenging, replayable experience that gets better as you unlock classes and weapons. With co-op support, 84 missions, and a low price point, it is one of the best indie action games on Steam. See our complete Worth Playing review for the full verdict, pros and cons, and who should buy it.
If you enjoy games like Hotline Miami but want more tactical structure, or if you loved the original Door Kickers and want a faster-paced spin-off, Action Squad absolutely delivers.
READ THE FULL REVIEW WITH PROS, CONS & SCOREREADY TO BREACH?
Start with the Beginner Guide to learn the basics, or jump straight into the guide that matches what you need right now.
