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Steam

Mark One

Also known as Mark One, mark one, mark-one

Robots built by humans are retaliating. Step in to dispose rogue robots, defeat powerful foes and save the human race in this sci-fi action shooter.

Last update
17 May 2026
Players now
0
Original sources
1
Latest update
Announcement

Difficulty Tuning for March 1

Reduced damage from various sources throughout the game. Reduced missiles damage by 60% Slightly reduced damage from all patrol enemies Bot#23 melee damage reduced by 21% Ujtron's melee damage was reduced by 14% Ujtron'…

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Update history

Browse past updates and patch notes for this game.

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Gallery

In-game media

Achievements

Community progression

Top picks from 8 Steam achievements, sorted by player unlock rates.

  • Ready for battle!Complete the training course.63.3%
  • Space walkReach spaceship 94.62.2%
  • Like a bossDefeat bot #23.17.7%
  • TravellerReach Neo City.16.6%
  • Locked n' LoadedCollect all weapons13.3%
  • Stronger than mostDefeat Ujtron.13.3%