Games like The Seeker
Games like The Seeker include Gunpoint, Heat Signature, Hotline Miami, Serial Cleaner, and Sneak Thief. We matched them by the tags players give The Seeker on Steam (Early Access, Action, Indie, Puzzle, and Stealth): closest matches first, and among equally close ones the better-known games.

Gunpoint
Shared: Indie · Stealth · Puzzle

Heat Signature
Shared: Indie · Stealth · Action

Hotline Miami
Shared: Action · Indie · Top-Down

Serial Cleaner
Shared: Action · Indie · Stealth

Sneak Thief
Shared: Action · Stealth · Indie

I, Zombie
Shared: Stealth · Puzzle · Top-Down

Mark of the Ninja
Shared: Stealth · Indie · Action

Seen
Shared: Indie · Puzzle · Action

Mark of the Ninja: Remastered
Shared: Action · Stealth · Indie

Witch It
Shared: Indie · Action · Stealth

SUPERHOT
Shared: Action · Indie · Puzzle

Batman™: Arkham Knight
Shared: Action · Stealth · Puzzle

Monaco: What's Yours Is Mine
Shared: Indie · Stealth · Action

Warp
Shared: Action · Indie · Puzzle

Party Hard
Shared: Stealth · Indie · Action

2Dark
Shared: Indie · Stealth · Action

Aragami
Shared: Action · Stealth · Indie

Shadow Tactics: Blades of the Shogun
Shared: Stealth · Indie · Action

Bendy and the Dark Revival
Shared: Action · Indie · Puzzle

Feed and Grow: Fish
Shared: Early Access · Action · Indie

Storm Chasers
Shared: Early Access · Indie · Action

Hitman: Blood Money
Shared: Action · Stealth · Puzzle

Volume
Shared: Action · Stealth · Indie

Door Kickers
Shared: Action · Indie · Top-Down