Once Upon A Siege

Released Dec 1, 2022by Black Stream BoysNo user reviews(Steam reviews)

A Sci Fi VR Tower Defence Game. Upgrade & Manage - Defend & Rebuild - Endure.

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About Once Upon A Siege

Classic Tower Defence experienced through the eyes of the defender. As a member of the Galactic Feudalist League you participate in quasi-medieval sieges on the system's local planet, pitting your skills against 2 NPC armies and a host of siege units. Inspired by classic Tower Defence games such as Rampart and digested into a fun VR experience that offers interesting mechanics.

UPGRADE

Many upgrades are available in the space station shop. Focus on personal upgrades, upgrade your cannon, upgrade your defence tower, acquire explosive rounds or purchase special defensive tech to aide you in your siege endeavours.

MANAGE

Manage your defence base during sieges. Buy extra power cables to connect more functionality and upgrades while you defend. Keep an eye on energy levels and consumption as every upgrade costs as you decide which systems to run and which systems you must do without.

DEFEND

The enemy will send various siege units your way. Man your cannon and weaken their assault so that you may survive until the end. Disable siege towers full of raiding parties and ram towers, destroy reinforcement dropships, gunships and cannons and stop missile-throwing golems from breaching your walls. If all else fails and they storm your keep, draw your weapon and start shooting.

REBUILD

Quick and efficient build system to rebuild your walls and patch holes before your opponent sends armies through to end the siege. Use your defensive upgrades to create smoke shields or forcefields around walls and buy yourself precious survival time.

ENDURE

Survive until time runs out by taking care of your walls and neutralising enemy strength.


2 ARMIES
10 LEVELS
WALL BUILDING SYSTEM
MANY UPGRADES
DEFENCE TOWER MANAGEMENT

Game details

Game details

Released
Platforms
Steam rating
No user reviews

Age ratings

IGRS 13DEJUS LSTEAM_GERMANY 6

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Once Upon A Siege price history

Lowest tracked price: €2.99 (Jul 7, 2026) · current best: €2.99.

Once Upon A Siege — frequently asked questions

Where can I buy Once Upon A Siege at the cheapest price?

Right now the cheapest offer for Once Upon A Siege is €2.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Once Upon A Siege has ever been?

The lowest price KingsPrice has tracked for Once Upon A Siege is €2.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

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System requirements

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel i5-4590 / AMD Ryzen 5 1500X or greater
  • Memory: 6 GB RAM
  • Graphics: NVIDIA GTX 1060 / AMD Radeon RX 480 or greater
  • DirectX: Version 11
  • Storage: 2 GB available space
  • Sound Card: Any
  • VR Support: OpenXR. Standing or Room Scale

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: i7 7700K or greater
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GTX 1070 / AMD equivalent or greater
  • DirectX: Version 11
  • Storage: 2 GB available space
  • Sound Card: Any
  • VR Support: OpenXR, requires motion controllers

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