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Immortal Defense
Immortal Defense is a story-driven tower defense game in which you give up your body and life to become an immortal "path defender", and defend your home world from destruction, forever. The game takes place over millions of years. Is there anything you would give up everything to defend?
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via SteamSpy as of 2026-05-14.
“Had this in my library forever. Finally got around to playing it and it's great. I definitely underestimated this game, and would recommend to anyone. This is a tower defense with the punch of an action game. Charge Cut feels so good.”
— a player, Steam review · 1 hrs played“Awesome game with quirky TD mechanics, thoughtful writing, and a lovely art style which is more readable than one would think.”
— a player, Steam review · 18 hrs played“I love you, Grandpa.”
— a player, Steam review · 6 hrs playedLatest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
v1.2.7 Patch Notes
BALANCE - Endless levels now are not quite as endless. It's now much more difficult to last a half hour, an hour, or more, because the difficulty in those levels now scales faster the longer a level l
v1.2.7 Patch Notes
BALANCE - Endless levels now are not quite as endless. It's now much more difficult to last a half hour, an hour, or more, because the difficulty in those levels now scales faster the longer a level l
v1.2.4 PATCH NOTES (December 8, 2015)
v1.2.4 PATCH NOTES (December 8, 2015) Summary: This patch adds a new system where you can only have a limited number of medals active at any one time; this is intended to add more strategy to the meda
v1.2.4 PATCH NOTES (December 8, 2015)
v1.2.4 PATCH NOTES (December 8, 2015) Summary: This patch adds a new system where you can only have a limited number of medals active at any one time; this is intended to add more strategy to the meda
v1.2.2 Patch Changes
Major balance changes in this patch, to the Points, to some of the medals, and especially to the Point's achievement campaigns. A lot of other changes too, this is a pretty big patch. The patch change
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Action, Indie, Strategy |
| Player tags | Indie · Strategy · Action · Tower Defense · Sci-fi · Space · Great Soundtrack · Story Rich · Transhumanism · Atmospheric · Difficult · Dark (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Steam Trading Cards · Steam Workshop · Steam Cloud · Steam Leaderboards · Includes level editor · Family Sharing |
| Languages | English, French, Spanish - Spain, Japanese, Portuguese - Brazil, Russian |
| Achievements | 40 |
| Estimated owners | 0 – 20,000 (SteamSpy) |
| Official site | http://immortaldefense.com |
Minimum system requirements (PC)
Minimum: OS *: Windows XP, Vista, 7, 8, or 10 Memory: 1024 MB RAM Graphics: 128MB DirectX: Version 9.0 Storage: 350 MB available space