Acecraft How to Unlock Multiplayer and Co-op Guide

Multiplayer and co-op gameplay in Acecraft: Sky Hero completely change the way you experience the game. Instead of taking on tough bosses and bullet-hell stages alone, you can join forces with friends for double the firepower, double the wingmen, and a much easier time clearing levels.

The problem? The game doesn’t clearly explain how to unlock or use co-op features. That’s where this guide comes in. Below, you’ll learn how to unlock multiplayer, manage your friends list, adjust settings for smoother gameplay, and make the most out of co-op mode. Also check out our Acecraft Codes and Acecraft Tier List for those interested.

How to Unlock Multiplayer in Acecraft

Unlike most mobile games, co-op in Acecraft isn’t available right away. Here’s how to access it:

1. Progress through the story campaign until you reach Level 4-2. This stage is significantly harder than Level 4-1 and 3-6, which is intentional since multiplayer unlocks afterward.
2. Once you’ve cleared Level 4-2, the Invite Co-op button will appear in the bottom-right corner of the start screen.
3. From here, you can invite friends to join your stage runs.

Keep in mind that your invite attempts are limited per day. If you run out, they refresh every 24 hours, so save them for tougher levels.

Building Your Friends List for Co-op

Since co-op relies on your friends, you’ll want to keep your friends list strong and active.

• Add players with similar progress: They’ll be more likely to accept invites and perform well in co-op.
• Remove inactive players: Use the trash can button to clean up your list if someone hasn’t logged in for a while.
• Send and receive energy daily: Even outside of co-op, exchanging energy with friends gives you extra resources.

A solid friends list means you’ll always have strong allies ready to help when needed.

Important Settings for Co-op Gameplay

Before jumping into co-op, adjust your teammate transparency setting so you don’t lose track of your partner.

• By default, transparency is set to 14%, which makes your teammate nearly invisible.
• Increase it to around 30–40% so you can see them clearly without too much distraction.

This small adjustment will make co-op gameplay much smoother, especially in bullet-heavy boss fights.

How Co-op Gameplay Works

When you start a co-op match:

1. Invite a friend from your list who is strong enough to handle the stage.
2. Once they accept, both players choose their pilots and loadouts.
3. Ideally, you and your partner should pick different skill paths to cover more variety in combat.
4. During the run, your teammate’s ship will appear slightly transparent, depending on your settings.

The advantage of co-op is simple:

• Double the damage output
• Double the wingmen
• Easier boss fights
• Better survival chances

Pro Tips for Co-op Mode

• Save your daily invite attempts for harder stages or bosses.
• Coordinate with friends so you aren’t running identical builds—variety makes the team stronger.
• Use co-op to farm difficult levels that are otherwise a grind in solo mode.
• If your partner disconnects or leaves mid-battle, you’ll still benefit from their help up to that point.

Unlocking multiplayer in Acecraft: Sky Hero takes some effort, but once you clear Level 4-2, the co-op system becomes one of the best features in the game. With the right friends list, smart settings, and teamwork, you’ll breeze through tough stages that once felt impossible solo.

Whether you’re farming resources, testing different pilot builds, or just having fun with friends, co-op is worth mastering. So clear that 4-2 hurdle, invite your allies, and enjoy the chaos of double the firepower.