over the hill biomes confirmed as of 2026-07-25 are Emerald Lake and the surrounding valleys and mountains described on the [Steam store page](https://store.steampowered.com/app/2929250/over_the_hill) and the [Funselektor official site](https://www.funselektor.com/overthehill). The full release biome list has Not announced as of 2026-07-25. Portal travel activates after each completed objective and moves you into a new biome, with dynamic weather and day-night cycles plus realistic terrain deformation changing the route conditions between biomes.

Confirmed over the hill biomes

The 2026 release build exposes more biomes than the demo slice, but only three are described in official channels as of 2026-07-25. Treat the table below as the current confirmed list rather than a complete roster.

BiomeConfirmedSourceNotes
Emerald LakeYesSteam Next Fest demoCanada-themed slice in the demo, with reflective lake water and shoreline trails
ValleysYesSteam store descriptionVaried valley biomes inspired by real-world locations, with terrain deformation
MountainsYesSteam store descriptionHigh-elevation trails and weather shifts that drive route planning

The Steam store page frames the world as varied wilderness from valleys to mountains, with biomes inspired by real-world locations. The Funselektor official site reiterates the biome variety. Neither source publishes a numbered list, so any specific claim beyond "Emerald Lake plus valleys plus mountains" has Not announced as of 2026-07-25. Community threads on the r/overthehillgame new-biomes discussion should be read as demand signals, not fact evidence.

What is Not announced as of 2026-07-25

The following items are unannounced as of 2026-07-25:

  • A full release biome list, including any biome names beyond Emerald Lake and the unnamed valley and mountain sets.
  • Biome-specific weather, wildlife, or merchant rosters.
  • Number of portals, portal entry conditions beyond objective completion, and portal cooldowns.
  • Any biome that has been hinted at by media previews or community collations but not confirmed by the studio.

Sources for confirmed biomes

The Steam store description and the Funselektor site are the only tier-one sources for the current biome scope. The Steam Next Fest public demo news post confirms that Emerald Lake is the demo map slice. The PC Gamer Next Fest preview attributes the demo-era biome variety to the developer and treats the demo map as a small slice of a larger world.

How portal travel works

Portals are the connective tissue between biomes per the Steam store page and the Funselektor site. The mechanic is confirmed in the demo build per the Steam Next Fest demo news post.

Portal activation flow

Portal travel follows the same loop in every confirmed biome:

  1. Complete an objective to unlock the next portal. Objective markers refresh when you enter activation range.
  2. Drive to the portal site, which renders as a standing waypoint after the objective resolves.
  3. Enter the portal to travel to the next biome. Your vehicle, upgrades, and meteorite haul carry over.
  4. The next objective appears inside the new biome and the loop repeats.

The PC Gamer Next Fest preview frames the portal as the major progression beat between biomes, and the Forbes cozy multiplayer feature treats it as the natural convoy transition.

Weather, day-night, and terrain deformation across biomes

The Steam store description confirms dynamic weather, day-night cycles, and realistic terrain deformation across the world. Route planning in the valleys biome affects the next mountain pass:

  • Dynamic weather: Rain, dust storms, and clear skies rotate per biome and shift grip and visibility.
  • Day-night cycles: A meteorite chase that started at dusk in the valleys can hand off to a pre-dawn objective in the mountains.
  • Terrain deformation: Repeated tire tracks leave visible ruts that other vehicles and players will see, including in co-op sessions.

For the wider onboarding loop, see the over the hill getting started walkthrough; for the meteorite resource tied to the portal loop, see the over the hill meteorites guide.

Co-op and portal travel

Up to four players can travel through the same portal per the Steam store page and the official Reddit FAQ. Crossplay with PS5, Xbox Series X|S, and Switch 2 is confirmed by PCGamingWiki, so portal travel works across mixed-party platforms. See the over the hill multiplayer guide for the full co-op ruleset.

Biome reading list

Use the table below to find the right supporting page for each biome question.

QuestionSupporting page
How do I start a portal loop in the first biome?over the hill getting started walkthrough
Where do meteorites drop in each biome?over the hill meteorites guide
Which vehicles can I take into each biome?over the hill vehicles hub
What co-op rules apply across biomes?over the hill multiplayer guide

Sources

Fact Boundaries

  • Current-game: Emerald Lake plus valleys and mountains are the only confirmed biomes as of 2026-07-25 per the Steam store and the Funselektor site.
  • Current-game: Portal travel activates after each completed objective and connects biomes per the Steam store and the Funselektor site.
  • Current-game: Dynamic weather, day-night cycles, and realistic terrain deformation are confirmed across biomes per the Steam store.
  • Current-game: 4-player online co-op with crossplay across PC, PS5, Xbox Series X|S, and Switch 2 is confirmed by the Steam store, the official Reddit FAQ, and PCGamingWiki.
  • Attributed: PC Gamer frames the demo map as a slice of a larger world; Forbes highlights co-op convoy framing; both are attributed to demo-era coverage.
  • Legacy: No prior same-title game exists; the 1930/2011 Pixar short films and unrelated English idiom, song, and business uses are excluded entirely.
  • Unannounced: A full release biome list, biome-specific weather and merchant rosters, portal counts and cooldowns, and per-biome day length and weather rotation have Not announced as of 2026-07-25.

FAQ

How many biomes are in over the hill?

Three confirmed biomes as of 2026-07-25: Emerald Lake plus the surrounding valleys and mountains per the Steam store page and the Funselektor site. The full release biome list has Not announced as of 2026-07-25.

What is the demo map in over the hill?

The Steam Next Fest public demo exposes Emerald Lake per the Steam Next Fest demo news post. The demo ran June 12-22, 2026 on Steam with demo AppID 4703940.

How do I travel between biomes in over the hill?

Portals activate after each completed objective and move you into a new biome per the Steam store page and the Funselektor site. The mechanic is confirmed in the demo and intended for the release build.

Are there biome portals in co-op?

Yes. Up to four players can travel through the same portal in a co-op session per the Steam store page and the official Reddit FAQ. Crossplay with PS5, Xbox Series X|S, and Switch 2 is confirmed by PCGamingWiki.

Do biomes share the same weather and day-night cycle?

Each biome runs dynamic weather, day-night cycles, and realistic terrain deformation per the Steam store page, but the exact day length and weather rotation per biome has Not announced as of 2026-07-25.

over the hill getting started walkthroughGet the over the hill getting started walkthrough: portal travel, objectives, biomes, meteorites, vehicle upgrades, and the first-hour progression loop.over the hill meteorites: how they work and where to find themSee what over the hill meteorites do, where they drop after objectives, and how the meteorite haul feeds vehicle upgrades and cosmetics.over the hill vehicles: era, drivetrain, and unlock pathsBrowse the full over the hill vehicles roster by era, drivetrain, and unlock path. See demo-confirmed rigs, community cars, and the release-time status block.