Run a business.
Compete for real.
Compete against other players in a persistent economic simulator where you buy into and manage small and medium-sized businesses — every decision matters, down to the details that only an owner sees. @seis is time to play.
How it works
You get a sector at random
Local retail, food & beverage, services, light manufacturing, tech, fintech, health, or logistics — at small-business scale. You cannot choose. You adapt. Each sector has different demand patterns, margins, and competitive dynamics.
You buy into a business and run it
You start with the capital of a real small business owner. A handful of departments to staff and fund: Finance, Operations, Marketing, HR, R&D, and Sales. Every hire costs money every single day. How you allocate limited resources defines your strategy -- whether you know it or not.
The simulation never stops
Production runs, customers buy, competitors react, market events happen. Your business operates 24/7 whether you are online or not. Without operations staff, nothing gets produced. Without marketing, your brand decays. Cash hits zero? Bankruptcy.
Decisions have real consequences
Operational decisions take days. Tactical decisions take weeks. Strategic ones take months. Cancel mid-way and you lose the sunk cost. There are no save games, no undos, no reloads. Every dollar spent is gone.
Read what the press says about you
Three AI-generated newspapers cover every move in the market. The Market Chronicle reports the data. Business Insider Daily tells the story. The Disruptor writes the opinion piece. Your decisions make headlines -- or don't.
One metric decides the winner
DCF Valuation -- the discounted present value of your future cash flows. Not revenue. Not profit. Not market share. The question is: did you build a small business that generates sustainable value?
Limited spots. Verified players. Real stakes.
Join the next game
Games run in limited rounds with verified players. Leave your email and LinkedIn profile -- we will review your profile and contact you when the next Arena opens. Due to high demand, spots are limited.
- Your LinkedIn profile will be verified before acceptance. Limited spots per round.
Concepts you will use
Every mechanic in the game is rooted in real business theory, adapted to the scale and realities of small and medium-sized businesses. Click to learn more.
Porter's 5 Forces
Harvard Business Review
A framework for analysing the competitive intensity of an industry through five forces: rivalry, new entrants, substitutes, supplier power, and buyer power.
Harvard Business Review→DCF Valuation
Investopedia
Estimates the present value of an investment based on projected future cash flows, discounted at the weighted average cost of capital (WACC).
Investopedia→Supply Chain
Investopedia
The coordination of sourcing, procurement, production, and delivery. Disruptions cascade -- managing the chain efficiently is key to cost control.
Investopedia→Brand Equity
Investopedia
The commercial value derived from consumer perception of a brand. Builds slowly through consistency and quality, destroys quickly through failure.
Investopedia→Economies of Scale
Investopedia
Higher production volume reduces per-unit cost -- up to a point. Beyond that, diseconomies set in as complexity and coordination costs increase.
Investopedia→Cash Flow
Investopedia
Shows how cash moves through operating, investing, and financing activities. You can be profitable on paper and still go bankrupt from lack of cash.
Investopedia→Employee Engagement
Gallup
The level of psychological investment employees have in their work. High engagement drives retention, productivity, and innovation. Low engagement causes turnover.
Gallup→R&D Pipeline
OECD
The systematic process of developing new products through research. Each stage has cost, duration, and uncertainty. High investment can fail; low investment might get lucky.
OECD→Break-Even
Investopedia
The point where revenue equals total costs. Below break-even, every unit sold increases losses. Essential for pricing and capacity decisions.
Investopedia→Theory of Constraints
TOC Institute
Your maximum output is defined by the bottleneck. Improving non-bottleneck processes does nothing -- only alleviating the constraint matters.
TOC Institute→Marketing Mix
Investopedia
Four levers: Product (quality, features), Price (positioning), Place (distribution), Promotion (awareness). All four must work together coherently.
Investopedia→Technical Debt
Martin Fowler
The implied cost of deferred system maintenance. Like financial debt, it compounds: more errors, higher costs, slower response. Ignoring it is more expensive over time.
Martin Fowler→Frequently Asked Questions
What is atseis?+
@seis is time to play. atseis is an online multiplayer simulator where players invest in and manage small and medium-sized businesses in a persistent economic world. Every mechanic is rooted in real business theory — DCF valuation, competitive analysis, unit economics, brand equity — adapted to the scale of a small business.
Who is atseis designed for?+
SMB owners and aspiring entrepreneurs, investors interested in small business dynamics, and anyone who wants to learn business strategy by doing. Instructors can also create private classroom worlds with invite codes and track participant performance.
How does the simulation work?+
Your business operates 24/7 in real time. Production runs using Cobb-Douglas functions, customer demand follows a multinomial logit model, employees have engagement scores that affect productivity, and your balance sheet tracks real accounting flows. Decisions take time -- operational ones take days, strategic ones take months.
Is atseis free to play?+
Yes. atseis is free. Games run in limited rounds with verified players. Join the waitlist with your email and LinkedIn profile to request access to the next Arena.
How is atseis different from other business simulators?+
Most business simulators are designed around large corporations and turn-based rounds. atseis runs a persistent real-time economy at small-business scale, with the hands-on decisions a real SMB owner faces every day. Market share is not zero-sum — an outside option means consumers can choose to buy nothing. Every model (demand, production, HR, finance) is based on published academic research, not arbitrary game mechanics.
What determines the winner?+
DCF Valuation -- the discounted present value of your business's future cash flows. Not revenue, not profit, not market share. The question is whether you built a small business that generates sustainable value over time.
Why is it called atseis?+
atseis is a play on the at-sign and the number six — a small, sharp name for a simulator focused on the hands-on scale of small and medium-sized businesses. The tagline sums it up: @seis is time to play.
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