Knowing the controls in Icarus is the difference between calmly building a shelter and staring at a Grizzly Bear while pressing the wrong key. The defaults below cover PC keyboard and mouse controls plus the PlayStation 5 layout.

The controls listed here apply to the PC and PS5 editions referenced by the source guide. Xbox controls were not listed there, so use this page as a PC and PlayStation reference.

- Move Forward: W
- Move Back: S
- Move Left: A
- Move Right: D
- Interact: F
- Alternate Interact: X
- Swap Camera: C
- Hide UI: Numpad 9
- Hide Quest UI: Numpad 7
- Take Screenshot: F3
- Toggle Menu: Tab
- Text Chat: Enter
- Auto Run: Semicolon (;)
- Toggle Client Logging: Backtick (`)
- Open Field Guide: J
- Open Field Guide to Index: F1
- Loot All: Q
- Free Look: Left ALT
- Sprint: Left SHIFT
- Jump: Space
- Crouch: Left CTRL
- Hands: H
- Hotbar Forward: Mouse scroll wheel down
- Hotbar Back: Mouse scroll wheel up
- Hotbar 1: 1
- Hotbar 2: 2
- Hotbar 3: 3
- Hotbar 4: 4
- Hotbar 5: 5
- Hotbar 6: 6
- Hotbar 7: 7
- Hotbar 8: 8
- Hotbar 9: 9
- Hotbar 0: 0
- Hotbar Backpack: G
- Destroy Building Piece: Y
- Unfocus Building Grid: END
- Disable Building Grid Focus: HOME
- Raise Building Grid Offset: Page Up
- Lower Building Grid Offset: Page Down
- Toggle Suit Light: L
- Play Emote: Numpad +
- Toggle Photo Mode: Numpad 8
- Fire: Left mouse button
- Alternate Fire: Right mouse button
- Reload: R
- Inventory: I
- Crafting: O
- Map: M
- Tech: P
- Toggle Stay/Follow: Slash (/)
- Cycle Combat Behavior: INSERT/DELETE
- Nearby Tamed Creatures Follow: Left Bracket ([)
- Nearby Tamed Creatures Stay: Right Bracket (])

- Play Emote: L2 + Down directional button
- Hide Quest: L2 + Left directional button
- Swap Camera: L2 + Right directional button
- Raise Building Grid Offset (Build Mode): L2 + Up directional button
- Lower Building Grid Offset (Build Mode): L2 + Down directional button
- Alternate Fire: L2
- Hotbar Left: L1
- Unfocus Building Grid (Build Mode): Up directional button
- Hands: Down directional button
- Disable Building Grid Focus (Build Mode): Down directional button
- Hotbar Backpack: Right directional button
- Toggle Suit Light: Left directional button
- Basic Movement: Left analog stick
- Sprint Toggle: L3
- Inventory/Last Tab Opened: Press the touchpad
- Menu: Options button
- Use Tool/Fire/Place: R2
- Hotbar Right: R1
- Interact: Square
- Reload (Weapon): Circle
- Variants (Building Piece/Ammo): Hold Circle
- Alternate Interact: Triangle
- Jump: X
- Look Around: Right analog stick
- Crouch Toggle: R3