- Serious Sam The Third Encounter multiplayer supports solo, online co-op, and shared/split-screen play.
- Three confirmed modes: Single-player, Online Co-op, and Shared/Split Screen Co-op on Steam.
- Team roles win fights: split ranged, close-range, and flank duties across players.
- Movement discipline: never stack in one firing lane; keep retreat routes open.
- Release status: the game is still in early development, so exact player counts remain unannounced.
Multiplayer Modes Overview
Serious Sam The Third Encounter multiplayer is built around the series' signature run-and-gun combat scaled up for teams. The official Steam listing confirms three play formats, and cooperative battles against Mental's hordes remain the core hook of the series' multiplayer identity.
Video Highlights:
- Official Serious Sam franchise trailer from Croteam's channel
- Shows the classic large-scale horde battles co-op is built around
- Confirms the fast, movement-first combat pacing of the series
The confirmed mode lineup is straightforward:
| Mode | Format | Best For |
|---|---|---|
| Single-player | Solo campaign | Learning weapon locations and enemy patterns |
| Online Co-op | Remote team campaign | Coordinated sessions with larger enemy pressure |
| Shared/Split Screen Co-op | Local, one system | Couch play on a single display |
Exact player counts per session, cross-platform support, and any PvP modes have not been confirmed by Croteam. Treat any specific numbers circulating online as speculation until the official Steam page or Croteam channels confirm them.
Step-by-Step Co-op Setup
Follow this sequence to get a session running smoothly, whether you are playing online or on the couch.
Choose Your Multiplayer Mode
Pick solo, online co-op, or split-screen based on your group. Use solo first to learn the campaign, then bring the team in once everyone knows the basics.
Set Difficulty Before Starting
Match difficulty to your group's experience. Higher settings punish wasted heavy ammunition and poor target priority, so start lower with new teammates.
Assign Battlefield Responsibilities
Divide roles without rigid classes: one long-range player handles Scorpions and Biomechanoids, one close-range player stops Kleers and Werebulls, and one watches flanks.
Keep Movement Lanes Open
Spread across the arena. Do not stack behind teammates, always leave one retreat route, and call out when crossing someone's firing lane.
Recover After a Player Falls
Stabilize the arena first. Clear charging enemies, use area damage to open a safe approach, and never rush into an active cluster without an escape route.
Have each teammate learn one weapon category deeply. A team with a dedicated sniper, a shotgun brawler, and a heavy-weapon specialist covers every encounter type the campaign throws at you.
Weapon Roles in Team Play
Weapon choice changes significantly in Serious Sam The Third Encounter multiplayer. Solo value and co-op value are not the same thing.
| Weapon | Solo Value | Co-op Value | Best Use |
|---|---|---|---|
| Serious Bomb | Exceptional panic tool | Excellent coordinated wave-clear | Dense hordes, boss phases |
| Cannon | Deletes priority targets | Assign one player to heavy targets | Armored, long-range threats |
| Devastator | Controls multiple threats | Very strong when team spreads out | Arena waves, heavy units |
| Double Shotgun | Clears immediate threats | Protects teammates from flankers | Kleers, Gnaars, Werebulls |
| Sniper Rifle | Opens encounters safely | One player handles distant targets | Scorpions, ranged enemies |
| Rocket Launcher | Strong vs chokepoints | Needs firing discipline near allies | Grouped enemies, slow targets |
| Pistol / Knife | Ammunition-saving fallbacks | Limited; finish weakened enemies | Low-pressure moments |
Long-Range Specialist
- Sniper Rifle + Cannon
- Removes Scorpions early
- Isolates priority threats
Close-Range Brawler
- Double Shotgun + Devastator
- Stops charging Kleers
- Covers flanks and revives
Crowd Controller
- Rocket Launcher + Serious Bomb
- Breaks large waves
- Saves emergency burst for bosses
Rocket Launchers and Devastators demand discipline in co-op. Only fire explosives when enemy formations are clearly separated from teammates, and announce heavy shots before taking them.
Enemy Priority and Team Coordination
Cooperative encounters are decided by target priority, not raw damage output. Use this reference when waves fill the arena:
| Threat Type | Examples | Priority | Team Response |
|---|---|---|---|
| Rushing melee | Kleer, Werebull, Gnaar | Clear first | Brawler intercepts, team keeps moving |
| Ranged suppression | Scorpion, Biomechanoid | High | Sniper removes before horde engages |
| Heavy units | Khnum, Scrapjack | Very high | Focus fire with Cannon or Devastator |
| Boss-scale | Ugh-Zan, Sirian Warship | Critical | Spread out, attack exposed phases only |
Call out heavy targets before spending Cannon or Devastator ammunition. Focus fire shortens dangerous encounters and preserves heavy ammo for boss phases and late waves.
Every Co-op Session Checklist:
- Agree on difficulty before launching the campaign
- Assign long-range, close-range, and flank roles
- Confirm retreat routes in each new arena
- Set a callout habit for heavy weapon use
- Save Serious Bombs for boss-scale encounters
FAQ
Q: Does Serious Sam The Third Encounter multiplayer include PvP modes?
No PvP modes have been confirmed. The official Steam listing currently shows Single-player, Online Co-op, and Shared/Split Screen Co-op. Any deathmatch-style claims are speculation until Croteam announces otherwise.
Q: How many players can join a co-op session?
The exact player count has not been announced because the game is still in early development. Check the official Steam page for updates as release information is published.
Q: Is split-screen co-op available on PC?
Yes, the Steam listing includes Shared/Split Screen Co-op alongside online co-op, so local play on one system and display is supported.
Q: What is the best difficulty for a new co-op team?
Start on a lower difficulty so the team can learn enemy combinations without burning heavy ammunition early. Raise it once target priority and movement discipline are consistent.