Rapid Infection |2| Guide: Choosing your team at the start
About
OverviewRapid Infection |2| is a PvP survival game where up to 24 players split into two teams — the Survivors and the Rawren — and fight to wipe each other out. You earn points, evolve your unit, and take on limited-time events along the way. This guide covers team basics, how to play each side, the point system, and event content.
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Rapid Infection |2|
Choosing your team at the start
Step
Every match starts with a team selection between Survivors and Rawren. The two sides play completely differently, so knowing what each team is trying to do matters from the first second. You can switch sides at the start of the next match if you want to try the other team.
- Pick a team choose Survivors to fight off the alien horde, or Rawren to infect and overwhelm the humans.
- Check the mode the game runs Classic, Expert, or Sandbox.
- Evolve your unit to better destroy your enemy.
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Playing as a Survivor
Warn
Survivors are trying to destroy the Rawren team while avoiding contact with them. If a Rawren player touches you, you become infected and there is no way to undo it during that match. The next match lets you choose your team fresh.
Survivor units and their roles
Table
The Survivor roster has several classes that unlock through evolution. Understanding what each evolved form brings lets you and your teammates cover different jobs in a fight.
| Scout | base unit that evolves into Engineer |
| Engineer | builds a Droid Factory that sends Attack Droids against the Rawren; can also Swing Fist and Repair Structures |
| Fighter | evolves into Rocketeer or Commando |
| Mechanic | evolves into Builder |
| Mech Pilot | evolves into Elite Mech Pilot |
| Guard | evolves into Ranger or Minigunner, with further sub-evolutions into Juggernaut and Commissioner |
| Medic | evolves into Nano Medic, which can further evolve into Storm Soldier |
Playing as the Rawren
Tips
The Rawren are a parasitic alien hivemind whose goal is to infect the Survivors and overwhelm them. Their roster includes both standard units and evolved forms.
- The Walker, Runner, Attacker, Summoner, and Tank are the core units — each has at least one evolution.
- Walker evolves into Bile Walker or Stalker.
- Summoner evolves into Hivemind.
- Tank evolves into Bile Tank or Bastion.
- Event and gamepass Rawren units like the Devastator and Dark Knight have their own evolutions for players who have access to them.
The point system and how to claim badges
Step
Points build up as you play. There are three point milestones that each award a badge, but the game only grants the badge after you exit and come back in. Skip the rejoin step and the badge stays unclaimed.
- Reach 10,000 points then leave the game completely and rejoin to receive the badge.
- Reach 100,000 points repeat the same leave-and-rejoin process.
- Reach 1,000,000 points leave and rejoin one more time to collect the top-tier badge.
Limited-time events
CheckSeveral events add unique modes, items, and badges that disappear once the event ends. None of these are available outside their event period.
- Easter event each map holds 125 eggs; crack them to get a 10% chance at the Easter Badge per egg.
- Winter Chaos event (Elf Arrival 2025) open presents for a 1-in-10 chance at the Winter 2025 gift badge.
- Rawren Rush survive the Rawren Rush challenge to earn the Rawren Rush Badge.
- Abducted By Dogians get abducted to earn this badge and play as the Brawler.
Glossary
Glossary- Rawren
- The parasitic alien faction that players on the infection side control; their goal is to infect all Survivors.
- Infection
- What happens when a Rawren player makes contact with a Survivor — permanent for that match with no cure.
- Evolution
- Upgrading your unit into a stronger form.
- Classic
- One of the three game modes in Rapid Infection |2|.
- Expert
- One of the three game modes in Rapid Infection |2|.
- Sandbox
- One of the three game modes in Rapid Infection |2|.
- Rawren Rush
- A special challenge that rewards a badge if you survive it.
- Droid Factory
- A structure the Engineer class can build that spawns Attack Droids.
Common questions
FAQWhat is the difference between Survivors and Rawren?
Survivors try to stay uninfected and destroy the Rawren team. The Rawren try to infect Survivors by touching them. Choosing a side completely changes how you play.
My point badge never showed up. What do I do?
You have to leave the game and rejoin after hitting a milestone — 10k, 100k, or 1 million. The badge is not granted while you stay in the same session, so the rejoin step is not optional.
Can I get event badges after the event ends?
No. The Easter Badge, the Winter 2025 gift badge, and similar event rewards are only obtainable while their respective events are running.
How many players fit in one room?
A single room holds up to 24 players split across the two teams.
What does the Engineer do?
The Engineer is the evolved form of the Scout. It can swing its fist, repair structures for 50 HP, and place a Droid Factory that spawns Attack Droids — all on separate cooldowns.
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