Case 1
- How many AAA games?
- 5
- How many indie games?
- 20
- How many online games?
- 3
- How many VR games?
- 2
580.0GB
Open with these valuesSteam Storage Calculator
580.0GB
Result: 580.0 GBFive AAA games, twenty indie games, three online games and two VR titles need about 580 GB. The estimate uses rough 2024/2025 averages — 70 GB per AAA game, 3.5 per indie, 40 per online game, 20 per VR title. Add roughly a fifth on top before choosing a drive, for updates and free space.
The numbers at a glance
Held fixed: How many AAA games? 5, How many indie games? 20, How many online games? 3.
| How many VR games? | Result (GB) |
|---|---|
| 0 | 540.0 |
| 1 | 550.0 |
| 1 | 560.0 |
| 2Your value | 570.0 |
| 2Your value | 580.0 |
| 3 | 590.0 |
| 3 | 600.0 |
| 4 | 610.0 |
| 4 | 620.0 |
Worked examples
Case 2
- How many AAA games?
- 10
- How many indie games?
- 30
- How many online games?
- 5
- How many VR games?
- 3
1,065.0GB
Open with these valuesCase 3
- How many AAA games?
- 30
- How many indie games?
- 50
- How many online games?
- 10
- How many VR games?
- 5
2,775.0GB
Open with these valuesHow it's calculated
GB = 70 × AAA + 3.5 × indie + 40 × online + 20 × VR
- StepCount the games you actually want installed, not everything you own.
- StepSort them into big-budget, indie, online and VR titles.
- StepRead the total in gigabytes, using 2024/2025 average sizes.
- ResultMultiply by 1.2 before picking a drive, to leave room for updates.
What this number means
Steam publishes sizes per game, not averages
The linked store page, checked on 25 August 2026, names 85 GB for one title; category averages are not something Steam publishes at all. The 70, 3.5, 40 and 20 GB used here are rules of thumb from 2024 and 2025, not measurements.
Install sizes have been growing for years
Averages from 2024 and 2025 read low the longer they sit, and a single patch can add tens of gigabytes. Give the result about a fifth of slack in either direction.
Updates and free space are not in the total
The number is the sum of the installs alone. Multiply by 1.2 before buying a drive: the 580 GB example then needs 696 GB, which means a 1 TB drive.
Count what stays installed, not what you own
Five AAA games dominate the example — without them the same 20 indie, 3 online and 2 VR titles come to 230 GB instead of 580. Steam can move or reinstall the rest later.
Commonly misread
580 GB, so a 512 GB drive is nearly enough.
The total carries no headroom for updates. With the usual 20 % reserve it is 696 GB, which means the next drive size up.
These averages are sizes measured by Steam.
They are rules of thumb from 2024 and 2025 with no source behind them. The exact figure sits on each game's own store page.
I entered my whole library of 300 games.
Count only what you want installed at the same time. Steam can move games between drives or reinstall them later.
Reference table
| AAA, indie, online, VR | What that library looks like | Storage (GB) |
|---|---|---|
| 0, 0, 0, 0 | nothing installed yet | 0.0 |
| 0, 20, 0, 0 | twenty indie games and nothing else | 70.0 |
| 5, 0, 0, 0 | five big-budget games only | 350.0 |
| 5, 20, 3, 2 | a typical mixed library | 580.0 |
| 10, 30, 5, 3 | a heavy mixed library | 1065.0 |
| 30, 50, 10, 5 | a collector's library | 2775.0 |
Questions
How much space does a typical AAA game need?
Modern big-budget games usually want 50 to 100 GB, and this calculator uses 70 GB as the average. Some titles go past 150 GB once every update and add-on is installed. The exact figure is on each game's Steam page under system requirements.
How much space do indie games take?
Indie titles are far smaller, mostly 2 to 5 GB, and the calculator uses 3.5 GB. Many pixel-art or minimalist games stay under 1 GB. Dozens of them fit in the space of a single big-budget release.
How much space do VR games need?
VR titles usually need 10 to 30 GB each, and the calculator uses 20 GB. Flagship VR releases can reach 60 GB or more. They tend to be smaller than flat-screen blockbusters because their environments are smaller.
How accurate are these averages?
They are rules of thumb from 2024 and 2025, not measurements, and install sizes have been growing for years. Treat the result as a planning figure with maybe a fifth of slack either way. For an exact number, add up the storage line on each game's own store page.
What drive size should I buy?
Take the total here, add about 20 % for updates and free space, then pick the next standard drive up — 0.5, 1, 2 or 4 TB. The 580 GB example needs 696 GB with that headroom, so a 1 TB drive. An SSD cuts loading times sharply, and Steam can move games between drives later.
Sources and last check
Information, not professional advice.