PEAK

PEAK is a physics-based co-op climbing game that demands tight teamwork, with unique daily challenges thanks to constantly shifting terrain. This is a fresh pick for anyone seeking a teamwork challenge and a chance to explore light survival mechanics.

PEAK Overview: Story & Setting

Team Landcrab Develops PEAK on Unity

PEAK launches on Steam (PC – Windows), created through a collaboration between Aggro Crab and Landfall under the name “Landcrab,” and built with the Unity engine. The game supports solo play as well as 1–4 player online co-op, features proximity voice chat, customizable key mapping, controller support, and runs smoothly on Steam Deck.

Story: Mysterious Mountain Island & the Scoutmaster

Players find themselves as a group of scouts stranded after a plane crash on a mysterious island. At its center looms a massive mountain divided into multiple diverse biomes. Your mission is to work together to climb to the summit, gather supplies from the wreckage—gear, food, and medical items—while searching for a way to escape the island.

Storytelling Through Co-op Gameplay

PEAK avoids lengthy cutscenes and instead tells its story through gameplay itself: rescuing teammates, heart-pounding slip-ups, or sudden encounters like the Scoutmaster chasing a lost player. Every ascent becomes a memorable experience, true to the “TEST room” spirit.

PEAK Gameplay: Physics & Co-op

Physics-Based Climbing, Stamina & Controls

Movement and climbing in PEAK are grounded in realistic physics—grip, pull, and jump. Even small mistakes can send the entire group tumbling back to base. Both stamina and hunger directly affect movement, forcing players to plan rest breaks carefully before difficult climbing sections.

Co-op Teamplay & Real-Time Voice Chat

PEAK truly shines in co-op. Players share backpack items, help one another across dangerous terrain, and rescue injured or fallen teammates. Proximity-based voice chat enhances immersion and humor, with voices fading over distance—making calls for help feel tense and authentic.

Diverse Biomes & Ever-Changing Island Map

Every 24 hours, the mountain’s layout is reshuffled while maintaining biome order: shoreline, rainforest, icy peaks, and volcanic crater. Each biome introduces unique hazards such as fog, poison, strong winds, falling rocks, slippery ice, or lava, ensuring that every run feels fresh and unpredictable.

PEAK Beginner’s Guide

Smart Equipment Choices & Team Preparation

At the crash site base camp, coordinate with your team when selecting gear. Prioritize ropes, hooks, flashlights, and safe food, and distribute backpack slots wisely. Since resources are shared, defining roles early helps the team progress smoothly.

Managing Stamina, Food & Injuries

Every movement drains stamina, so avoid letting it hit zero mid-climb. Plan rest stops to recover and learn the effects of different food types—some can poison you, reduce strength, or worsen injuries. Always carry medical supplies and use them before conditions escalate.

Using Altars & Teamwork to Progress

Altars at camp checkpoints allow players to revive teammates and reduce item loss after falls. Staying close together also helps avoid being hunted by the Scoutmaster. Tight formation and coordination make difficult sections far more manageable.

PEAK Game Modes, Graphics & Performance

Solo Mode, Co-op Multiplayer & Hard Modes

PEAK offers a solo mode for players seeking a personal challenge, but it truly excels in multiplayer co-op. Completing the game unlocks harder difficulty modes, increasing replay value and appealing to speedrunners and hardcore players.

Pastel Visual Style & Biome Effects

The game’s pastel color palette keeps visuals light and approachable despite the intense gameplay. Lighting and color shifts between biomes help players quickly identify paths, grips, and hazards in constantly changing environments.

Key Mapping, Controller Support & Steam Deck Optimization

PEAK supports mouse and keyboard, Xbox and PlayStation controllers, and Steam Deck, with fully customizable inputs. Performance is well optimized across modern PC setups, ensuring smooth gameplay that keeps the focus on teamwork rather than technical issues.

PEAK Climbing Game Review: Final Thoughts

PEAK successfully blends physics-based climbing, light survival mechanics, and proximity voice co-op into a unique teamwork-focused experience. With daily-changing maps, inventive co-op systems, and dangerous, varied biomes, every climb feels like a new adventure. It earns a strong place on any “TEST room” list for fans of cooperative challenge games.

If you and your friends are looking for a truly challenging yet fun teamwork experience, PEAK is a co-op climbing game well worth trying.