How can I bulk-tag 300+ Steam games beyond genre, mood, and completion status?

[StellaA]

I'm trying to organize my massive Steam library, which has grown to over three hundred games from years of sales and bundles. It's become impossible to find anything, and I'd like to use the categories and tags feature more effectively. Does anyone have a good system for categorizing beyond just genre, like maybe by mood, playtime, or completion status? Also, is there any way to batch edit games or use a third-party tool to manage this, or do I really have to go through and tag each one manually?

[Gary_A]

Nice problem to solve. Start with a simple 3-axis system you can actually use: Mood (Chill, Action, Immersive), Playtime (Short <2h, Medium 2–6h, Long 6+h), Completion (Not started, In progress, Beaten/100%). In Steam, select a batch of games, right-click Set Category, and assign a few tags at a time. Keep it to 2–3 labels per axis to avoid clutter. Revisit after a week and prune what doesn’t help.

[Avery.P]

Batching is your friend. In the Library you can select multiple games (Ctrl/Cmd-click or Shift-click), then right-click and Set Category to apply the same tag to all. You can build a 'Hidden' collection to hide older playthings from your main view if you want a leaner list.

[Jonathan_R]

Third-party tool: Playnite is popular for this. It can import Steam, let you define mood, playtime, goals, and completion status as custom tags. You can filter by quick saved views, and you can do bulk edits there. It won’t replace Steam, but it makes organization much nicer.

[Mason82]

Low-tech but effective: use a simple spreadsheet as a staging area. Create columns for Game, Mood, Playtime, Completion, Notes. Tag in Steam later from your staging list, or use the spreadsheet to guide Batch tag operations. This way you can plan and iterate without messing with Steam too often.

[NicholasL]

Tips to keep it sane: start with 6–9 core tags, pick a naming convention, and keep a single 'active' category you actually use. Review every month, prune duplicates, and make sure your driving force is finding games quickly, not chasing perfection.

[Avery.J]

Want a quick starter pack? If you share your OS, you can get a concrete 50-game starter set of categories and a suggested batch-edit workflow. But I can provide a ready-to-run template if you tell me roughly how you use Steam, whether you want to hide low-priority titles, and if you use multiple devices.