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Deadnaut: Signal Lost

Deadnaut: Signal Lost

Deadnaut: Signal Lost is a sci-fi horror turn-based roguelike where loyalty isn't earned - it's installed. Scavenge derelict ships and abandoned moons filled with hellish creatures, brutal AI and insanity storms. Gather gear and upgrades to fight or evade the hi-tech supersoldiers hunting you down.

Released Mar 28, 2023 Developer Screwfly Studios Platforms Windows · Linux ExplorationTraditional RoguelikeTurn-Based TacticsPerma DeathTurn-Based Strategy
View on Steam ↗ $14.99 (US · as of 2026-05-15)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.

86.5%positive96 reviews
Recommended · 0 found this helpful

“A massive improvement on the original Deadnaut. The most important differences are that you control only one deadnaut instead of a team, and that the game is turn-based instead of real-time, making it much more like a traditional roguelike. But both changes are for the better,…”

— a player, Steam review · 71 hrs played
Not recommended · 0 found this helpful

“Eh. I play a lot of roguelikes, this one didn't grab me. Kind of atmospheric for a very brief time, but very rapidly becomes repetitive and clunky. It is very easy for things to go sideways in an eyeblink but the dullness of much of the gameplay makes me want to move fast and in…”

— a player, Steam review · 3 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2025-07 via SteamCharts; self-collected from the Steam API since Aug 2026.

56all-time peak
0 10 20 2024 2025 No data collected for this period No data collected for this period 10 avg · Apr 2023

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.

45achievements
4.4%median completion
0.1%rarest: Shield Master
45.2% of players 38.2% of players 33.4% of players 30.3% of players 29.8% of players 29.0% of players 25.9% of players 22.0% of players 15.1% of players 12.8% of players 10.2% of players 9.9% of players 9.6% of players 9.6% of players 9.3% of players 8.5% of players 6.7% of players 6.5% of players 6.1% of players 5.0% of players 4.6% of players 4.5% of players 4.4% of players 4.1% of players 4.1% of players 3.9% of players 3.0% of players 1.7% of players 1.7% of players 1.2% of players 1.2% of players 1.1% of players 0.9% of players 0.9% of players 0.8% of players 0.7% of players 0.5% of players 0.4% of players 0.3% of players 0.2% of players 0.2% of players 0.2% of players 0.1% of players 0.1% of players 0.1% of players 45.2% 0% most earned rarest
Almost everyone has
45.2%Tier It Up — Reach the second tier.
38.2%Data Miner — Gain 25,000 knowledge.
33.4%Dead Looter — Investigate 100 corpses.
Rarest badges of honor
0.1%Shield Master — Kill 50 enemies using reflected shots from your shield.
0.1%The Most Toys — Puppet a deadnaut 10 times.
0.1%Field Master — Kill 10 enemies at the same time using the Crush upgrade.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Nov 16, 2023
Deadnaut: Signal Lost - "Derelict Duty" Update 1.2.1

We've just released a new patch for Deadnaut: Signal Lost. This update, version 1.2.1, is primarily focused on bug fixes and performance improvements. Below you'll find a detailed list of what's new a

Aug 18, 2023
Deadnaut: Signal Lost - "Derelict Duty" Update 1.2.0

Oh, I didn't see you there Handler! I was busy trying to rub this hideous mutation off my forearm. No matter what cleaning agent I use -- soap, bleach, acid -- it continues to writhe up my arm like a

May 24, 2023
Deadnaut: Signal Lost - "Wild Moons" Update 1.1.1

Whether you've been caught in a hallucination storm and lasered phantoms, or tussled with the chaos that the Rip rains can bring, we hope you're enjoying the new newness of the Wild Moons update. Toda

May 17, 2023
Deadnaut: Signal Lost - "Wild Moons" Update 1.1.0

Welcome back Handler! The ever-shifting unreality of Rip Space awaits, unveiling secrets, threats, and companions in the most unexpected places. In our latest "Wild Moons" update, the cosmos unravels

Apr 21, 2023
Deadnaut: Signal Lost - Update 1.0.6

Greetings fellow space... adventurers? Dwellers? Monster fodder? However you classify yourself in the cosmic food chain, anyone can enjoy Deadnaut: Signal Lost's 1.0.6 update. Not sure how it tastes,

Games like Deadnaut: Signal Lost

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Scavenger SV-4 Scavenger SV-4 90.8% · 553 reviews shares Perma Death, Procedural Generation, Space, Rogue Like Quasimorph Quasimorph 84.9% · 3,628 reviews shares Perma Death, Turn Based Tactics, Turn Based Strategy, Procedural Generation Deep Rock Galactic Deep Rock Galactic 97.6% · 213,592 reviews shares Class Based, Procedural Generation, Space, Sci Fi Lethal Company Lethal Company 97.4% · 343,258 reviews shares Perma Death, Procedural Generation, Psychological Horror, Sci Fi Nuclear Nightmare Nuclear Nightmare 83.0% · 10,995 reviews shares Perma Death, Procedural Generation, Psychological Horror, Sci Fi Murky Divers Murky Divers 87.4% · 2,942 reviews shares Procedural Generation, Character Customization, Psychological Horror, Sci Fi The Inn-Sanity The Inn-Sanity 95.0% · 522 reviews shares Multiple Endings, Choices Matter, Psychological Horror, Sci Fi The Outer Worlds: Spacer's Choice Edition The Outer Worlds: Spacer's Choice Edition 75.7% · 3,526 reviews shares Space, Character Customization, Multiple Endings, Sci Fi

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-28.

GenresIndie, RPG, Strategy
Player tagsExploration · Traditional Roguelike · Turn-Based Tactics · Perma Death · Turn-Based Strategy · Rogue-like · RPG · Character Customization · Sci-fi · 3D · First-Person · Horror (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Family Sharing
LanguagesEnglish
Achievements45
Official sitehttps://signal-lost.com
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7 SP1 64-bit or later Processor: 2.6GHz quad-core or similar Memory: 8 GB RAM Graphics: NVIDIA GeForce GTX 950 or similar DirectX: Version 11 Storage: 250 MB available space