Sands of the Vault Guide: Movement, Skill Tree & Endless Abyss

Most of the depth in Sands of the Vault lives in its movement. It's a 2D platformer where you drop through a dungeon, the sand wastes, and the vault itself, and almost every problem is really a question of "can I get there before the timer runs out — and without touching a spike?" I spent most of my tuning time on the feel of a single jump. So that's where this guide starts, then works outward to the persistent Skill Tree, the run curses you gamble with, and the two endless modes I added on top of the campaign.

How the movement actually feels

The core of the platforming is a running jump that rewards commitment. You have two ground speeds — a careful walk and a full run — and the run isn't instant. It accelerates up to top speed and decays when you let go, so building momentum is a deliberate act rather than a toggle. Crucially, a jump taken at a dead stop is weaker than one taken mid-sprint: standing jumps launch you at a lower power than running jumps, so the widest gaps in the game are only clearable if you commit to the run first. Here are the real numbers I tuned to:

The two forgiveness systems — coyote time and the jump buffer — are the reason the game feels fair instead of twitchy. Coyote time gives you a four-frame window to still jump after you've technically walked off an edge, and the jump buffer remembers a jump press for six frames so a fraction-early tap still triggers the moment you touch ground. Wall jumps let you scale narrow shafts by alternating kicks off opposing walls, and there's an achievement just for stringing five of them together.

Combat is deliberately simple so it never fights the platforming. You start every run with the Exile Sword, and two alternate weapons change the rhythm: the Rogue Dagger is short-range and fast, and its second swing within a tight window lands a doubled "flurry" hit; the Vault Spear has long reach and pierces everything in its arc but swings slowly. There's also a parry: tap it while grounded to open a brief defensive stance, and a clean parry drops enemies into a bonus-damage riposte window and can shatter a Shield Sentinel's guard.

The Skill Tree: what to buy first

Shards are the game's currency, and the Skill Tree is where they become permanent power. There are six nodes. You buy them between runs, they persist across New Game+, and one of them (Vital Reserve) can be stacked up to three times. Every node's effect is applied automatically at the start of each run, so once you own it you never have to re-equip anything. Here's the full tree with real costs and effects:

If I'm advising a new player, I buy Shard Sight first. At six shards it's the cheapest node and it pays for itself — a free shard on every room entry snowballs your economy and makes every other node arrive faster. After that, Iron Skin is the best raw survivability per shard: a ward charge silently eats the first hit of a run (and grants a brief invincibility window when it triggers), which is often the hit that would have started a death spiral. Time Grace is the pick if the countdown is what keeps killing you, since two extra minutes is enormous on the shorter later acts. I'd hold Vital Reserve and Ancient Mending for later — they're strong, but they're the most expensive, and the run economy is much friendlier once Shard Sight is feeding you. Unlocking all six nodes at full rank earns the Skill Master achievement.

Run curses: risk you choose

Before a normal run, the game offers you a small shuffled pool of curses and lets you accept as many as you dare. Each curse makes the run harder in exchange for a bonus payout — the shard bonus is a percentage of the shards you earn that run, added on top when you finish. Stack more curses and you multiply your shard income, which is the fastest way to fund the Skill Tree. Completing a run with three active curses earns its own achievement. Here's every curse and exactly what it does:

The bonuses are priced by how punishing each curse is. Veil of Ash is the friendliest gamble — hiding the HUD doesn't change the rules, only your information, so if you've internalized your health it's near-free value. Blood Fury mostly matters if you like to stealth past patrols. At the sharp end, Hollow Vials pays the most because it removes your entire healing safety net, and Echo Curse punishes every mistake by gutting the shards you came to farm. My advice: pair a high-payout curse you can play around with a cheap one like Veil of Ash to pad the bonus without doubling the real danger.

Endless Abyss

Endless Abyss strips away the campaign's structure and turns the game into a pure survival descent. There's no countdown timer here — it runs as a depth counter instead. Every time you exit a room, your depth increases by one and you drop into another randomly chosen room pulled from a fixed pool of a dozen layouts spanning the dungeon, the sand wastes, the vault, and the apex. Because the order is random, you can't memorize a route; you're reading rooms cold, run after run. The game tracks your best depth as a personal record, and reaching depth 20 unlocks the Abyss Walker achievement. Your Skill Tree still applies in full — Shard Sight in particular keeps ticking on every room entry — so a well-invested tree makes deep Abyss runs meaningfully more survivable.

Arena Waves

Arena Waves is the opposite idea: one room, no descent, and an escalating tide of enemies. Waves get bigger and tougher on fixed rules. The enemy count per wave scales up until it caps at eight, and enemy HP steps up by 20% every three waves, so a wave-nine skeleton is noticeably tankier than a wave-one one. The type of enemy also escalates in tiers every three waves — early waves throw Sand Wardens and crawlers, later ones bring guards, Shield Sentinels and Sand Archers, and the deepest tier mixes in Bone Colossi, Void Shades and Phantom Rogues. Every tenth wave is a boss wave that spawns the Vault Keeper on top of the regular crowd. Surviving to wave 10 earns the Arena Survivor achievement, and your best wave is saved as a record.

The two modes reward different players. Abyss is for people who love clean platforming under pressure — it's about how far your movement and reflexes carry you. Arena is for people who want to lean on combat and crowd control, using the dagger's flurry and the parry-riposte to thin packs before they surround you. Both are excellent shard farms, and both respect the same Skill Tree you build in the campaign.

Quick-start recommendations

• First few runs: Buy Shard Sight, then Iron Skin. Play the campaign on Rogue (normal) difficulty and learn to commit to running jumps.
• Struggling with the timer: Grab Time Grace, and consider the easier Historian difficulty, which multiplies your timer by 1.5 and halves incoming damage.
• Farming shards fast: Stack Veil of Ash with one high-payout curse like Hollow Vials, and grind Arena Waves for its steady enemy drops.
• Chasing achievements: Push Endless Abyss to depth 20, survive Arena to wave 10, and complete a run carrying three curses at once.

There isn't a single "correct" way through Sands of the Vault — that was the point. You can lean on movement and speed, on the sword and parry, or on a fully-built Skill Tree that carries a cautious player deep into the Abyss. Learn the running jump first, let Shard Sight fund the rest, and pick the curses and mode that match how you like to play.