Abyssus Controls
Default keyboard and mouse bindings for movement, combat, dash, double jump, and abilities.
Abyssus is a fast-paced FPS roguelite where movement and aim precision determine survival more than raw damage stats. Your Brinehunter combines omnidirectional WASD movement with a double jump, directional dash on ground and in air, and dual fire modes on every weapon plus a dedicated ability slot. Mastering these controls early — especially dash timing during boss telegraphs — prevents deaths that no amount of Soul Wheel investment can compensate for. This reference covers every default keyboard and mouse binding and explains how movement integrates with combat and abilities.
Movement Controls
| Action | Default Key | Notes |
|---|---|---|
| Move Forward | W | Omnidirectional — combine with A/D for strafing |
| Move Backward | S | Backpedal while firing during retreat phases |
| Strafe Left | A | Essential for circle-strafing bosses |
| Strafe Right | D | Pair with mouse aim for tracking weak points |
| Jump | Space | First press — standard jump |
| Double Jump | Space (mid-air) | Second press while airborne — critical for dodging shockwaves |
| Dash | Shift | Works on ground and in air; direction follows movement input |
Movement in Abyssus has no dedicated sprint button. Base movement speed is consistent, and additional speed comes from dash, double jump momentum, and Blessing bonuses. During combat, maintain constant motion — standing still invites melee hits and ground hazards. Practice dash-jump combinations in Temple depth 1 rooms before facing elite fights at depth 2. The dash cooldown is short enough to chain two dashes during long boss attack sequences, but managing dash availability during Royal Herald gauntlets requires deliberate pacing.
Combat Controls
| Action | Default Input | Notes |
|---|---|---|
| Primary Fire | Left Mouse Button (LMB) | Main weapon mode — three modes per weapon via lobby selection |
| Secondary Fire | Right Mouse Button (RMB) | Alternate fire mode — often higher damage or different projectile type |
| Ability | Q | Deploys selected ability — see abilities overview |
| Aim | Mouse | Free aim — no ADS toggle on most weapons |
Primary fire (LMB) handles the bulk of your damage output. Each weapon offers three primary fire modes unlocked through challenges — select your preferred mode in the lobby before diving. Secondary fire (RMB) provides burst damage, AoE, or utility depending on weapon. The Brine Revolver secondary often outperforms primary on bosses; the Plasma Launcher secondary creates large explosion zones. Learn when to switch between fire modes during fights rather than relying on primary alone.
Ability Activation (Q)
The Q key deploys your selected ability from the lobby loadout. Default ability is Frag Grenade — a thrown explosive useful for early room clear. Most experienced players switch to the Turret for sustained DPS, Brine Field for team protection, or Anchor for melee engage. Abilities recharge between room clears, not during combat — use them aggressively every fight rather than hoarding for boss rooms.
Ability placement matters for Turret and Brine Field. Deploy Turrets in corners with line of sight to enemy spawn points before engaging. Place Brine Field bubbles centrally during boss AoE phases so your team can retreat inside the protective radius. Anchor requires aiming at enemy clusters — practice quick Q-tap aim during movement to land anchors on Herald elite groups in Royal Abyss.
Dash and Double Jump in Combat
Dash (Shift) is your primary defensive tool. It provides a brief invulnerability window and rapid repositioning that double jump alone cannot match. Use dash through telegraphed slam attacks, projectile lines, and vine traps in the Gardens. Air dash enables mid-combo repositioning — jump, dash diagonally, double jump to maximize vertical and horizontal distance. Boss fights in Sanctuary and Royal Abyss demand dash discipline; exhausting dash cooldown before a heavy attack phase often means death.
Double jump (Space mid-air) clears ground hazards and reaches elevated platforms in Sanctuary architecture. It does not provide the same i-frame coverage as dash, so prefer dash for pure avoidance and double jump for positioning. Some Blessings increase jump height or dash distance — these modifiers stack with base controls and can enable shortcuts in certain room layouts. Review the Blessings guide for movement-enhancing Aspect picks.
Controller Support
Abyssus supports gamepad input with remappable bindings. Default controller layout mirrors keyboard functions: movement on left stick, aim on right stick, primary fire on right trigger, secondary on left trigger, ability on a face button, dash on a bumper, and jump on another face button. Controller aim assist helps with projectile weapons but weak-point precision on the Brine Revolver still favors mouse input for high-Brine boss play. Remap controls in the settings menu before your first expedition — default bindings may not suit your grip style.
Recommended Practice Routine
- Run Temple depth 1 rooms focusing only on dash timing — dodge every attack without firing.
- Practice double jump plus air dash to cross Gardens arena gaps without touching hazards.
- Alternate LMB and RMB on your main weapon until mode switching is muscle memory.
- Deploy your ability at the start of every room until Q-press becomes automatic.
- Replay Sanctuary depth 4 boss using only movement — no healing — to test dash cooldown management.