Games like Deadnaut: Signal Lost
Games like Deadnaut: Signal Lost include XCOM 2, Lethal Company, Starfield, Elin, and Into the Breach. We matched them by the tags players give Deadnaut: Signal Lost on Steam (Exploration, Traditional Roguelike, Turn-Based Tactics, Perma Death, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.
XCOM 2
Shared: Turn-Based Tactics · RPG · Character Customization
Lethal Company
Shared: Exploration · First-Person · Horror
Starfield
Shared: Exploration · RPG · Sci-fi
Elin
Shared: Roguelike · Traditional Roguelike · Character Customization
Into the Breach
Shared: Turn-Based Strategy · Turn-Based Tactics · Roguelike
STAR WARS Zero Company™
Shared: Turn-Based Tactics · Turn-Based Strategy · Sci-fi
Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Turn-Based Tactics · Turn-Based Strategy · Character Customization
XCOM: Enemy Unknown
Shared: Turn-Based Strategy · Sci-fi · Turn-Based Tactics
FTL: Faster Than Light
Shared: Roguelike · Perma Death · Sci-fi
BattleTech
Shared: Turn-Based Tactics · Turn-Based Strategy · Sci-fi
XCOM®: Chimera Squad
Shared: Turn-Based Tactics · Turn-Based Strategy · Sci-fi
Warhammer 40,000: Rogue Trader
Shared: RPG · Turn-Based Strategy · Character Customization
Inkbound
Shared: Turn-Based Tactics · Turn-Based Strategy · Roguelike
Baldi's Basics Plus
Shared: Roguelike · Exploration · Horror
The Last Spell
Shared: Turn-Based Strategy · Turn-Based Tactics · RPG
Approaching Infinity
Shared: Exploration · Traditional Roguelike · Sci-fi
Tainted Grail: The Fall of Avalon
Shared: Exploration · RPG · Character Customization
Mewgenics
Shared: Turn-Based Tactics · Turn-Based Strategy · RPG
MENACE
Shared: Turn-Based Tactics · Turn-Based Strategy · RPG
Path of Achra
Shared: Roguelike · Traditional Roguelike · Perma Death
Fallout: New Vegas
Shared: Exploration · RPG · First-Person
Wildermyth
Shared: Turn-Based Tactics · Character Customization · Turn-Based Strategy
Jupiter Hell
Shared: Traditional Roguelike · Roguelike · RPG
Battle Brothers
Shared: Turn-Based Tactics · Turn-Based Strategy · RPG