Online co-op and split screen
Best Co-op Games on Xbox, from Halo Campaigns to Squad Missions
The top co-op games on Xbox are Halo: The Master Chief Collection, Gears 5 and Gears of War 4. Of the top 5, 1 is free and 4 have crossplay.
Top 5:
Xbox co-op campaigns
Stories you play together from start to finish, several of them with split screen on one Xbox.
Start with: Halo: The Master Chief Collection, Gears 5, Gears of War 4 and Gears of War 3.
Halo: The Master Chief Collection

2–16 online4 on one screenCrossplay
Six Halo campaigns in one package, all playable in co-op online, with two on one screen on Xbox.
Split screen is only on Xbox. On PC each player needs a copy.
PC · Xbox
Halo: The Master Chief Collection: View game →Gears 5

2–10 online3 on one screenCrossplay
Three play the campaign together, online or on one screen, and Horde mode takes five.
The campaign caps at three, so a fourth friend waits for Horde.
PC · Xbox
Gears 5: View game →Gears of War 4

2–10 online2 on one screenCrossplay
A campaign for two, online or split screen, and Horde for five with crossplay with PC.
Only two fit in the campaign.
PC · Xbox
Gears of War 4: View game →Gears of War 3
Our pick

2–10 online2 on one screen
Four play the campaign online, two can split one screen, and Horde takes five.
An Xbox 360 game that runs on Xbox One and Series, with no PC version.
Xbox
Gears of War 3: View game →Halo Infinite
Free2–24 online4 on one screenCrossplay
Up to four play the open-world campaign together online.
The campaign has no split screen, and only the multiplayer is free.
PC · Xbox
Halo Infinite: View game →Space Marine 2

2–12 onlineCrossplay
The campaign and the Operations missions are for three, with crossplay between PC, PS5 and Xbox.
Three is the cap in co-op, and there is no split screen.
PC · PS5 · Xbox
Space Marine 2: View game →Baldur's Gate 3
Our pick

2–4 online2 on one screenCrossplay
Up to four play one campaign online, each with their own character, and two can split one screen.
Split screen is for two, so a bigger group plays online.
PC · PS5 · Xbox
Baldur's Gate 3: View game →Split Fiction
Our pick

2 online2 on one screenCrossplay
Made for two, on one screen or online, and a Friend's Pass lets one copy cover both.
Two players only, so it's for a pair inside the group.
PC · PS5 · Xbox · Switch 2
Split Fiction: View game →
Online co-op missions for a squad on Xbox
Missions for a squad of three or four that you can repeat for months, and most of them have crossplay.
Start with: Helldivers 2, Deep Rock Galactic, Sea of Thieves, Remnant II and Diablo IV.
Helldivers 2

2–4 onlineCrossplay
A squad of four drops onto planets against bugs and robots, with crossplay between PC, PS5 and Xbox.
Friendly fire is always on.
PC · PS5 · Xbox
Helldivers 2: View game →Deep Rock Galactic

2–4 online
Four dwarves mine caves that change every mission, and each class has its own job.
No crossplay with PlayStation, and no split screen.
PC · PS5 · Xbox
Deep Rock Galactic: View game →Sea of Thieves

2–4 onlineCrossplay
Up to four sail one ship as a crew, with crossplay between PC, PS5 and Xbox.
Other crews can attack you, unless you sail in Safer Seas, where progress has a cap.
PC · PS5 · Xbox
Sea of Thieves: View game →Remnant II

2–3 onlineCrossplay
Three play through worlds that change each run, with crossplay between PC, PS5 and Xbox.
Three is the cap, and there is no split screen.
PC · PS5 · Xbox
Remnant II: View game →Diablo IV

2–4 online2 on one screenCrossplay
Four play online with crossplay, and two can share one Xbox for couch co-op.
It needs a Battle.net account and an internet connection, even to play alone.
PC · PS5 · Xbox
Diablo IV: View game →Phasmophobia

2–4 onlineCrossplay
Up to four hunt ghosts together, with crossplay between PC, PS5 and Xbox.
The ghost reacts to what you say into the mic, so everyone needs one.
PC · PS5 · Xbox
Phasmophobia: View game →
Xbox survival games to build a world together
The group shares one world and keeps it going between sessions, with room for four to ten.
Start with: Grounded, State of Decay 2, Minecraft (Bedrock Edition), Valheim and Terraria.
Grounded

2–4 onlineCrossplay
Four friends shrunk to the size of ants survive in a backyard, with crossplay on every platform.
Four is the cap, and there is no split screen.
PC · PS5 · Xbox · Switch
Grounded: View game →State of Decay 2

2–4 onlineCrossplay
Four survive a zombie outbreak online, with crossplay between Xbox and PC.
Guests play in the host's world, and only the host's community moves forward.
PC · Xbox
State of Decay 2: View game →Minecraft (Bedrock Edition)

2–10 online4 on one screenCrossplay
Four play on one Xbox with split screen, and more join online with crossplay on every platform.
Friends on the Java Edition for PC can't join.
PC · PS5 · Xbox · Switch
Minecraft (Bedrock Edition): View game →Valheim

2–10 onlineCrossplay
Up to ten build and explore one Viking world, with crossplay with PC and PS5.
No split screen, so each of you needs a copy.
PC · PS5 · Xbox · Switch 2
Valheim: View game →Terraria

2–8 online4 on one screen
Four on one Xbox with split screen, or up to eight online in one world.
No crossplay between Xbox and PC.
PC · PS4 · Xbox · Switch
Terraria: View game →