Multiplayer is the backbone of over the hill's pitch: "Take to the trails solo or with up to three friends." Four players total, online, cooperating over the same obstacles the terrain throws at everyone. The rules below come from the official FAQ (#9, #11, #12) and the store listing.
The confirmed rules
| Rule | Official answer |
|---|---|
| Player cap | Up to 4 players in total (solo or with up to three friends) |
| Local co-op / split-screen | "Not feasible at the moment" |
| Cross-play | "Yes." |
| Solo completeness | Every area playable alone in single player |
| Checkpoints | Progress tracked individually; each player must reach the checkpoint themselves |
| Progress sharing | Progress and completed objectives save and transfer between single player and multiplayer |
| Voice chat | Being explored; radio-style chat "will fit better with the game" |
| Wheels / FFB | Not planned for initial release; gamepad and keyboard first |
How co-op actually works
The FAQ's own scenario: you can help each other reach the objective, but each player must reach the checkpoint themselves to complete it. That single rule shapes the whole co-op loop: a friend can winch you, bridge your gap, and repair your car (repair kits explicitly work on other players' vehicles), but nobody can drag you to the finish. Progress and objectives are saved and transferred between solo and multiplayer, so the same save carries your whole journey.
During the demo, community players reported that event rewards seemed to go only to the player who started the event. The developers have not published a launch ruling on that specific behavior, so treat it as open rather than as a promised fix.
⚠️ Unconfirmed. Which platform pairs are included in cross-play (for example, whether Steam players will match with the 2027 console ports at their launch) has not been detailed. The official answer is a confirmation that cross-play exists, not a platform matrix.
Bigger lobbies?
A Steam community thread asks for raising the cap to 6–8 players per lobby. The official cap language everywhere is "up to 4 players in total". Nothing suggests a change is planned.
Playing solo
Single player is a first-class mode, not a fallback: each area alone, full completion, with your multiplayer progress riding the same save. The systems that make co-op fun (winches on friends, shared repairs) have solo equivalents through the tool kit on the gameplay page. The worlds you unlock together are the six launch areas, and the timeline for when console friends can join is on the platforms page.
FAQ
Does over the hill have multiplayer?
Yes: online co-op for up to four players total, alongside full single player.
Is there local co-op or split-screen in over the hill?
No. The official FAQ says implementing local co-op is not feasible at the moment.
Is cross-play confirmed?
Yes. The official FAQ answers the cross-play question with "Yes." The exact platform combinations have not been spelled out.
Do I keep progress if I switch between solo and multiplayer?
Yes. Progress and completed objectives are saved and transferred between single player and multiplayer, per the official FAQ.
Can one player complete objectives for the group?
No. Each player has to reach checkpoints themselves; you can assist (winch, bridge, repair), not carry.