Note: This article was last updated 2026-08-19. PEAK hit its second CCU surge of 2026 — concurrent players jumped from 36,446 (2026-08-11) to 103,986 (2026-08-17), a +185.3% surge that puts it within striking distance of its 144,799 all-time peak. The most recent patch is 1.63 (2026-06-04), adding the daily map rotation and Kiln lighting fixes. Landfall has publicly stated they ship fewer, more complete updates rather than weekly drops.

Why this article now

You asked for a biome tier list — we have one. We also answer the question that’s been trending since 2026-04-04: “Is PEAK still being updated?” Yes, but slowly. Here’s the full breakdown of how the four biomes rank for both new players and 4-player ladder climbers, plus how the 1.63 daily-rotation system changes your planning.

PEAK Biome Tier List (ranked easiest to hardest)

Rank	Biome	Difficulty	Best For	Stamina Cost	Hazard Type
1	Shore	Beginner	First-time 4-player groups	Low	None — gentle slopes
2	Tropics	Beginner → Intermediate	Food farming	Medium	Heat debuff (campfires restore it)
3	Caldera	Intermediate	Experienced groups	High	Active hazards (steam vents + falling rocks)
4	Kiln	Expert	Climbing veterans	Extreme	Lava damage + visibility drops

Shore — the bootstrap biome

Shore is the starting biome and the easiest. The ascent is gentle, the respawn points are plentiful, and stamina is rarely an issue if your squad stops at campfires every 5-7 minutes. New 4-player groups should not move to the next biome until they can complete a full Shore climb without anyone dying.

Tropics — the food-farming biome

Tropics ramps up the heat mechanic: your stamina drains faster without a campfire buff, but cooked mushrooms, fruits, and meat are everywhere. The Scout class earns its keep here — assign one player to Scout early, and your squad’s food buffs stack on every campfire.

Caldera — the first real challenge

Caldera introduces active hazards: steam vents that knock you off ledges, and falling rocks that block your route. The stamina cost doubles compared to Tropics, and most groups complete only 60-70% of a Caldera climb before someone wipes. Bring a Heavy (for supply carry) and two Medics on your first Caldera run.

Kiln — the endgame biome

Kiln is the lava biome, and it is where most first-time climbers fail. Visibility drops dramatically near the lava flows, the stamina cost is the highest in the game, and a single campfire miss can wipe a squad. Bring a maxed-out Path Finder (for navigation in low visibility) and at least two Scouts (for extended food buffs).

The meta 4-player scout class combos

Rank	Composition	Why It Works	Best Biome
1	Path Finder + Heavy + Medic + Scout	Balanced stamina loop; navigation + supply carry + revives + cooking	All biomes
2	Path Finder + Heavy + 2× Medic	Safer squad for first-time Caldera / Kiln runs	Caldera, Kiln
3	2× Scout + Heavy + Medic	Maximum food buff stacking; lower stamina ceiling	Tropics
4	Path Finder + 3× Medic	Max heals for solo-queue squads; weak on stamina	Shore, Tropics

The meta combo (rank 1) is the workhorse — it works in every biome, every map rotation, and every skill level. If you queue with randoms, ask for the two roles first: Heavy and Medic. Those are the hardest to play well.

The Stamina → Food → Campire loop (the core mechanic)

Step	Action	Stamina Effect
1	Sprint to first campfire	Drains stamina
2	Light campfire	Restores stamina, refreshes buff timer
3	Eat cooked food (Scout cooks it)	30-min stamina regen buff
4	Buff expires after ~30 minutes	Sprint drops to base stamina
5	Repeat before climbing each biome wall	Avoid mid-climb starvation

The key insight: cooked food from a Scout class lasts 30 minutes and stacks with the campfire buff. Eating raw food only restores a small amount without a buff timer. Never climb a biome wall without a Scout in your squad.

What the 1.63 daily-rotation patch changed (2026-06-04)

Change	Before 1.63	After 1.63
Map pool	Fixed per biome	Daily-rotating curated + community maps
Kiln lighting	Buggy at low FPS	Fixed (no more visibility drops below 30 fps)
Daily main menu	Static map of the day	Pulls from rotation pool
Scout food stack	No change	No change
Server performance	Stable	Stable

The 1.63 patch is the most significant since the game’s launch. The daily-rotation system means your squad composition has to be flexible — you can’t pre-plan for a Caldera-only run on a Tropics-rotated day. Recommended strategy: pick a meta combo that works in every biome (rank 1 in the table above) and adapt at the campfire, not at the spawn.

Steam Deck performance (cheat sheet from our 8-16 guide)

Setting	Recommendation
Resolution	1280×800 (native Steam Deck)
Preset	Medium
Target framerate	40 fps (capped)
Battery life	3-4 hours
Verified status	✅ Verified (not just Playable)

PEAK is one of the few Steam Deck Verified co-op games with a 4-player squad option. On OLED hardware you can push 50 fps at medium settings — see the PEAK Co-op Climbing Guide for the full Steam Deck benchmarking methodology.

Patch cadence: what to expect (Landfall’s 2026-04-04 statement)

In April 2026, Landfall publicly addressed player complaints about sparse updates. Their position is:

Updates are a reward, not a contractual right
Each patch should ship complete and good, not “minimum viable”
Expect 4-6 patches per year (not weekly)

This means the 1.63 daily-rotation patch (2026-06-04) is consistent with Landfall’s cadence. The next big patch is expected around the end of Q3 2026 (late September) — likely a new biome or a Scout class rework. We’ll update this guide when it lands.

FAQ (2026-08-19)

Q: When is the next PEAK patch? A: No firm date. Landfall’s last patch was 1.63 (2026-06-04), so the next major is expected late Q3 2026 (around September). The team has hinted at a new biome or a Scout class rework.

Q: Is PEAK still worth buying at $7.99 (or $4.95 on sale)? A: Yes — by every objective metric. PEAK has been on the Steam best-seller chart for 14 months straight, hit 103,986 CCU in August 2026 (close to its 144,799 peak), and there is zero microtransaction, DLC, or battle pass model. It is the cheapest current-gen co-op game on Steam.

Q: Can PEAK be played solo? A: Yes, but the game is balanced for 1-4 players. Solo climbers get punished by the stamina system because they have no one to anchor with. We recommend a 2-player minimum squad for casual play, 4 for the Kiln climb.

Q: Does PEAK work on Steam Deck? A: Yes — Steam Deck Verified. Expect 40-50 fps on OLED medium settings with ~3-4 hours of battery. On LCD Steam Deck, expect 30-40 fps on low-medium settings. See the PEAK Steam Deck Guide for the full benchmark.

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