theoryunderground
Substacknewsletter · by theoryunderground
- Audience
- Not shown publicly
- We show a dash rather than guess
- Observed frequency
- Several times a week
- From 5 posts indexed in the last 90 days
- Last post
- Oct 31, 2026
- 11 days ago
- Likely audience
- Gaming enthusiasts
- Inferred from post content
theoryunderground is a Substack newsletter by theoryunderground covering Kickstarter campaigns, Trading card games and Philosophy history. NewsletterFIT indexed 5 posts from it in the last 90 days, most recently on Oct 31, 2026.
Topics
- Kickstarter campaigns
- Trading card games
- Philosophy history
- Art illustration
- Crowdfunding
Recent posts
- Five Philosophers…
- Looking for…
- Stop Blaming…
- The Problems…
- How We…
Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on theoryunderground
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Nov 11, 2026 · How NewsletterFIT collects and labels data